Mark 1
Introduction
Mark's Gospel opens with a rush of action. Unlike Matthew and Luke, there is no birth narrative, no genealogy, no infancy story. Mark plunges straight into the adult ministry of Jesus, beginning with the prophetic preparation of John the Baptist and moving rapidly through Jesus' baptism, temptation, and the launch of his Galilean ministry. The chapter is dominated by the theme of authority -- Jesus teaches with an authority that astonishes, commands unclean spirits that obey, heals diseases with a touch, and calls disciples who leave everything to follow. Mark's characteristic adverb εὐθύς ("immediately") appears repeatedly, creating an atmosphere of urgency and divine momentum. Everything is happening now; the kingdom of God is breaking in.
The chapter also introduces what scholars call the "messianic secret" -- Jesus repeatedly commands those he heals and the demons he exorcises not to make him known. This tension between revelation and concealment runs throughout the Gospel. Mark presents a Jesus who is powerful yet deliberately hidden, whose identity as the Son of God (declared in the very first verse and confirmed at his baptism) must be understood not through raw displays of power but ultimately through the cross. The parallel accounts of these events can be found in Matthew 3:1-4:25, Luke 3:1-5:16, and John 1:19-34.
The Beginning of the Gospel (v. 1)
1 This is the beginning of the gospel of Jesus Christ, the Son of God.
1 The beginning of the gospel of Jesus Christ, the Son of God.
Notes
Mark's opening is abrupt -- there is no verb. The Greek simply reads Ἀρχὴ τοῦ εὐαγγελίου Ἰησοῦ Χριστοῦ Υἱοῦ Θεοῦ. The word ἀρχή ("beginning") may serve as a title for the entire Gospel or may refer specifically to the opening events -- John's ministry as the starting point of the good news. The echo of Genesis 1:1 ("In the beginning") is likely intentional, signaling that a new creative act of God is underway.
The word εὐαγγέλιον ("gospel" or "good news") would have carried both Jewish and Roman connotations. In the Septuagint, it echoes the "good tidings" of Isaiah 40:9 and Isaiah 52:7. In the Roman world, it was used for imperial proclamations -- the announcement of a new emperor's accession or a military victory. Mark's use of the term is thus a subtle challenge to Roman authority: the true good news is not Caesar's but Christ's.
The phrase Υἱοῦ Θεοῦ ("Son of God") is absent from some important manuscripts (notably Codex Sinaiticus), leading the SBL and Westcott-Hort texts to omit it. However, the ECM, Nestle-Aland, and Byzantine traditions include it, and it fits Mark's theological program: the Gospel begins by declaring Jesus as Son of God and will end with the centurion's confession at the cross, "Truly this man was the Son of God" (Mark 15:39).
The Mission of John the Baptist (vv. 2-8)
2 As it is written in Isaiah the prophet: "Behold, I will send My messenger ahead of You, who will prepare Your way." 3 "A voice of one calling in the wilderness, 'Prepare the way for the Lord, make straight paths for Him.'"
4 John the Baptist appeared in the wilderness, preaching a baptism of repentance for the forgiveness of sins. 5 People went out to him from all of Jerusalem and the countryside of Judea. Confessing their sins, they were baptized by him in the Jordan River.
6 John was clothed in camel's hair, with a leather belt around his waist. His food was locusts and wild honey. 7 And he proclaimed: "After me will come One more powerful than I, the straps of whose sandals I am not worthy to stoop down and untie. 8 I baptize you with water, but He will baptize you with the Holy Spirit."
2 As it is written in Isaiah the prophet: "Look, I am sending my messenger before your face, who will prepare your way." 3 "A voice crying out in the wilderness: 'Prepare the way of the Lord, make his paths straight.'"
4 John appeared, baptizing in the wilderness and proclaiming a baptism of repentance for the forgiveness of sins. 5 And all the region of Judea and all the people of Jerusalem went out to him, and they were being baptized by him in the Jordan River, confessing their sins.
6 And John was clothed in camel's hair, with a leather belt around his waist, and he ate locusts and wild honey. 7 And he proclaimed, saying, "The one who is mightier than I is coming after me, the strap of whose sandals I am not worthy to stoop down and untie. 8 I baptized you with water, but he will baptize you with the Holy Spirit."
Notes
Mark attributes the composite quotation in vv. 2-3 to "Isaiah the prophet," though the first part (v. 2) is actually drawn from Malachi 3:1 (with echoes of Exodus 23:20), while the second part (v. 3) comes from Isaiah 40:3. The Byzantine and Textus Receptus traditions read "in the prophets" (plural), which smooths over the difficulty, but the harder reading "in Isaiah the prophet" is almost certainly original. Ancient writers sometimes attributed a composite quotation to the most prominent source, and Isaiah was regarded as the greatest of the writing prophets. The quotation establishes that John's ministry is the prophetic fulfillment of God's promise to prepare the way for his coming.
The word ἄγγελος in v. 2, translated "messenger," is the same word used for "angel." In this context it refers to John as God's human emissary, but the double meaning subtly elevates John's role.
Mark describes John as ὁ βαπτίζων ("the one baptizing"), using the participle rather than the more formal title "the Baptist." His baptism is described as a βάπτισμα μετανοίας ("baptism of repentance"). The word μετάνοια means more than regret or remorse -- it denotes a complete turning of the mind and will, a reorientation of one's entire life toward God. The preposition εἰς ("for" or "toward") before ἄφεσιν ἁμαρτιῶν ("forgiveness of sins") indicates purpose: the baptism was directed toward the forgiveness that God grants.
John's clothing -- camel's hair and a leather belt -- deliberately echoes the description of Elijah in 2 Kings 1:8, identifying John as the expected Elijah figure who would return before the great day of the Lord (Malachi 4:5). His diet of ἀκρίδας ("locusts") and μέλι ἄγριον ("wild honey") marks him as a wilderness ascetic, living outside the structures of civilized society.
John's declaration about the coming one uses the comparative ἰσχυρότερος ("mightier" or "more powerful"). The detail about stooping to untie sandals (κύψας λῦσαι) is unique to Mark -- Matthew and Luke say only that the Baptist is unworthy to "carry" the sandals. Untying sandals was considered a task too menial even for a Jewish slave; John says he is unworthy even of this. The contrast between water baptism and Spirit baptism points forward to Pentecost (Acts 1:5, Acts 2:1-4).
Interpretations
The relationship between John's baptism "for the forgiveness of sins" and Christian baptism has been debated. Some traditions (particularly Reformed) view John's baptism as a sign of the repentance that precedes forgiveness, with forgiveness itself coming through faith in the coming Messiah. Others see a more direct sacramental connection. The phrase "baptize you with the Holy Spirit" has been understood differently as well: cessationists typically see this as fulfilled at Pentecost for the apostolic community, while Pentecostal and charismatic traditions understand it as an experience available to all believers in every generation.
The Baptism of Jesus (vv. 9-11)
9 In those days Jesus came from Nazareth in Galilee and was baptized by John in the Jordan. 10 As soon as Jesus came up out of the water, He saw the heavens breaking open and the Spirit descending on Him like a dove. 11 And a voice came from heaven: "You are My beloved Son; in You I am well pleased."
9 And it happened in those days that Jesus came from Nazareth of Galilee and was baptized by John in the Jordan. 10 And immediately, coming up out of the water, he saw the heavens being torn apart and the Spirit descending on him like a dove. 11 And a voice came from the heavens: "You are my beloved Son; in you I am well pleased."
Notes
Mark's account of the baptism is the shortest of the Synoptics. Unlike Matthew, there is no dialogue between Jesus and John about the propriety of the baptism (Matthew 3:14-15). Mark simply reports the event and its extraordinary aftermath.
The adverb εὐθύς ("immediately") appears here for the first time in the narrative proper, beginning the relentless pace that characterizes Mark's Gospel. The verb σχιζομένους ("being torn apart") is more forceful than Matthew's ἠνεῴχθησαν ("were opened"). Mark uses the verb σχίζω ("to tear, to rip"), the same root behind the English word "schism." It appears only one other time in Mark -- at Mark 15:38, when the temple curtain is "torn" in two at Jesus' death. This verbal link frames the entire Gospel: the heavens torn open at the baptism, the temple veil torn open at the cross, both revealing divine presence and access.
The Spirit descends ὡς περιστεράν ("like a dove"). Whether the dove describes the form of the Spirit or the manner of descent (gently, like a dove alighting) has been debated. The dove carries several Old Testament associations: the Spirit hovering over the waters at creation (Genesis 1:2), Noah's dove signaling the end of judgment (Genesis 8:8-12), and the beloved described as a dove in Song of Solomon 2:14.
The voice from heaven declares Σὺ εἶ ὁ Υἱός μου ὁ ἀγαπητός, ἐν σοὶ εὐδόκησα. In Mark, the voice addresses Jesus directly ("You are"), whereas in Matthew the voice speaks about him to bystanders ("This is"). The declaration combines Psalm 2:7 ("You are my Son") -- a royal enthronement psalm -- with Isaiah 42:1 ("in whom my soul delights"), the introduction of the Servant of the Lord. The word ἀγαπητός ("beloved") may also carry the nuance of "only" (as in the LXX of Genesis 22:2, where Isaac is called Abraham's "beloved" son). The verb εὐδόκησα ("I am well pleased") is in the aorist tense, suggesting a timeless or comprehensive delight -- not "I have become pleased" but "I have set my delight upon you."
The Temptation in the Wilderness (vv. 12-13)
12 At once the Spirit drove Jesus into the wilderness, 13 and He was there for forty days, being tempted by Satan. He was with the wild animals, and the angels ministered to Him.
12 And immediately the Spirit drove him out into the wilderness. 13 And he was in the wilderness forty days, being tempted by Satan, and he was with the wild animals, and the angels were serving him.
Notes
Mark's temptation account is compressed -- just two verses compared to the detailed three-part temptation narratives in Matthew 4:1-11 and Luke 4:1-13. Mark provides no specific temptations, no dialogue between Jesus and Satan, no quotations from Deuteronomy. This brevity is itself significant: Mark is less interested in the content of the temptation than in the stark fact that the Spirit who has just descended upon Jesus now ἐκβάλλει ("drives" or "casts out") him into the wilderness. This is the same verb Mark uses for the casting out of demons -- the Spirit does not gently lead but drives Jesus headlong into the place of testing.
The number forty echoes Israel's forty years in the wilderness (Deuteronomy 8:2), Moses' forty days on Sinai (Exodus 34:28), and Elijah's forty-day journey to Horeb (1 Kings 19:8). The name Σατανᾶ is the Greek transliteration of the Hebrew "satan" ("adversary"). Mark prefers this Semitic form, while Matthew and Luke alternate between "Satan" and διάβολος ("the devil").
The detail that Jesus ἦν μετὰ τῶν θηρίων ("was with the wild animals") is unique to Mark. This may evoke the peaceable kingdom of Isaiah 11:6-9, where the Messiah's reign brings harmony between humans and animals, or it may simply underscore the desolation and danger of the Judean wilderness. The verb διηκόνουν ("were serving") indicates continuous ministry by the angels throughout the period, not merely at the end as Matthew implies (Matthew 4:11).
The Beginning of the Galilean Ministry (vv. 14-15)
14 After the arrest of John, Jesus went into Galilee and proclaimed the gospel of God. 15 "The time is fulfilled," He said, "and the kingdom of God is near. Repent and believe in the gospel!"
14 Now after John was handed over, Jesus came into Galilee, proclaiming the gospel of God, 15 and saying, "The time has been fulfilled, and the kingdom of God has drawn near. Repent and believe in the gospel."
Notes
Mark summarizes the transition from John's ministry to Jesus' with a single phrase: μετὰ δὲ τὸ παραδοθῆναι τὸν Ἰωάννην ("after John was handed over"). The verb παραδίδωμι ("to hand over, to deliver up") is theologically loaded in Mark: it is the same verb used for Judas "handing over" Jesus (Mark 14:10), for the Sanhedrin "handing him over" to Pilate (Mark 15:1), and ultimately for God "handing over" his Son (Romans 8:32). By using this verb for John's arrest, Mark hints that John's fate foreshadows Jesus' own.
Jesus' proclamation contains four elements. First, πεπλήρωται ὁ καιρός ("the time has been fulfilled") -- the verb is in the perfect tense, indicating a completed action with ongoing results. The word καιρός is not ordinary clock-time (χρόνος) but the decisive, appointed moment in God's plan. Second, ἤγγικεν ἡ βασιλεία τοῦ Θεοῦ ("the kingdom of God has drawn near") -- the perfect tense of ἐγγίζω suggests the kingdom has arrived and remains present. Third, μετανοεῖτε ("repent") -- the same call issued by John, now with greater urgency. Fourth, πιστεύετε ἐν τῷ εὐαγγελίῳ ("believe in the gospel") -- a distinctly Markan addition not found in the parallels. The combination of repentance and faith captures the two sides of conversion: turning away from sin and turning toward God's good news.
Some manuscripts (Byzantine and Textus Receptus) read "the gospel of the kingdom of God," harmonizing with Matthew's characteristic phrase, but the shorter reading "the gospel of God" is likely original.
Interpretations
The phrase "the kingdom of God has drawn near" has generated significant debate. Dispensational interpreters have sometimes understood this as an offer of the Davidic kingdom to Israel, which was then postponed when Israel rejected Jesus. Covenant theologians and most mainstream Protestant interpreters understand the kingdom as genuinely inaugurated in Jesus' ministry but not yet consummated -- the "already and not yet" framework. The perfect tense ἤγγικεν supports the view that the kingdom has truly arrived, not merely that it is approaching.
The Calling of the First Disciples (vv. 16-20)
16 As Jesus was walking beside the Sea of Galilee, He saw Simon and his brother Andrew. They were casting a net into the sea, for they were fishermen. 17 "Come, follow Me," Jesus said, "and I will make you fishers of men." 18 And at once they left their nets and followed Him.
19 Going on a little farther, He saw James son of Zebedee and his brother John. They were in a boat, mending their nets. 20 Immediately Jesus called them, and they left their father Zebedee in the boat with the hired men and followed Him.
16 And passing alongside the Sea of Galilee, he saw Simon and Andrew the brother of Simon casting a net in the sea, for they were fishermen. 17 And Jesus said to them, "Come after me, and I will make you become fishers of people." 18 And immediately they left their nets and followed him.
19 And going on a little farther, he saw James the son of Zebedee and John his brother, who were also in the boat mending the nets. 20 And immediately he called them, and they left their father Zebedee in the boat with the hired workers and went after him.
Notes
Mark's call narrative is spare. There is no prior acquaintance between Jesus and the fishermen (contrast John 1:35-42, where Andrew has already encountered Jesus through John the Baptist). In Mark, Jesus simply appears, speaks, and the disciples follow -- the sheer authority of his word is sufficient. The command δεῦτε ὀπίσω μου ("come after me") uses the language of discipleship: to follow "behind" a rabbi was to commit to his way of life and teaching.
The promise "I will make you become ἁλιεῖς ἀνθρώπων ("fishers of people") transforms their existing vocation into a metaphor for mission. The image may echo Jeremiah 16:16, where God sends "fishermen" to gather his scattered people, though there the connotation is judgment rather than salvation.
The adverb εὐθύς ("immediately") marks both responses (vv. 18, 20), emphasizing the instant obedience that Jesus' call demands. The detail that James and John left their father Zebedee "with the hired workers" (μετὰ τῶν μισθωτῶν) is unique to Mark and suggests the family fishing business was substantial -- they were not destitute but chose to leave a comfortable livelihood. The cost of discipleship is already visible: family, livelihood, and security are left behind at a single word from Jesus.
Authority over an Unclean Spirit in Capernaum (vv. 21-28)
21 Then Jesus and His companions went to Capernaum, and right away Jesus entered the synagogue on the Sabbath and began to teach. 22 The people were astonished at His teaching, because He taught as one who had authority, and not as the scribes.
23 Suddenly a man with an unclean spirit cried out in the synagogue: 24 "What do You want with us, Jesus of Nazareth? Have You come to destroy us? I know who You are -- the Holy One of God!"
25 But Jesus rebuked the spirit. "Be silent!" He said. "Come out of him!" 26 At this, the unclean spirit threw the man into convulsions and came out with a loud shriek.
27 All the people were amazed and began to ask one another, "What is this? A new teaching with authority! He commands even the unclean spirits, and they obey Him!" 28 And the news about Jesus spread quickly through the whole region of Galilee.
21 And they went into Capernaum, and immediately on the Sabbath he entered the synagogue and began to teach. 22 And they were astonished at his teaching, for he was teaching them as one who had authority, and not as the scribes.
23 And immediately there was in their synagogue a man with an unclean spirit, and he cried out, 24 "What have you to do with us, Jesus of Nazareth? Have you come to destroy us? I know who you are -- the Holy One of God!"
25 And Jesus rebuked him, saying, "Be silent and come out of him!" 26 And the unclean spirit, convulsing him and crying out with a loud voice, came out of him.
27 And they were all amazed, so that they questioned among themselves, saying, "What is this? A new teaching with authority! He commands even the unclean spirits, and they obey him!" 28 And the report about him went out immediately everywhere into all the surrounding region of Galilee.
Notes
This is the first miracle in Mark's Gospel -- notably, an exorcism rather than a healing. Mark gives more attention to exorcisms than any other Gospel, and by placing this one first he establishes authority over the demonic realm as the foundation of his ministry.
The contrast between Jesus' teaching and that of the scribes centers on the word ἐξουσία ("authority"). The scribes taught by citing earlier authorities; Jesus teaches on his own authority, with no appeal to prior tradition. Mark does not tell us what Jesus taught -- only how the crowd responded to it.
The demon's cry τί ἡμῖν καὶ σοί (literally "what to us and to you?") is a Semitic idiom expressing hostile confrontation -- "What do you have to do with us?" The use of the plural "us" suggests the demon speaks on behalf of the entire demonic realm. The question "Have you come to destroy us?" reveals that the demons recognize Jesus' ultimate purpose. The title ὁ ἅγιος τοῦ Θεοῦ ("the Holy One of God") is a christological title acknowledging Jesus' unique consecration and relationship to God. In the ancient world, knowing someone's true name or identity was thought to give power over them; the demon's attempt to name Jesus may be a defensive strategy, which Jesus immediately silences.
Jesus' command φιμώθητι ("be muzzled" or "be silent") is forceful -- the verb φιμόω literally means "to muzzle," as one would muzzle an animal. This is the first instance of the "messianic secret" motif: Jesus does not want his identity proclaimed by demons. The crowd's response identifies the twin aspects of Jesus' authority: a new teaching and power over unclean spirits. For them, word and deed form a unified demonstration of ἐξουσία.
Healing Peter's Mother-in-Law (vv. 29-31)
29 As soon as Jesus and His companions had left the synagogue, they went with James and John to the home of Simon and Andrew. 30 Simon's mother-in-law was sick in bed with a fever, and they promptly told Jesus about her. 31 So He went to her, took her by the hand, and helped her up. The fever left her, and she began to serve them.
29 And immediately after leaving the synagogue, they came into the house of Simon and Andrew, with James and John. 30 Now Simon's mother-in-law was lying ill with a fever, and immediately they told him about her. 31 And he came and took hold of her hand and raised her up, and the fever left her, and she began to serve them.
Notes
This brief healing account is marked by the precise detail characteristic of Mark's eyewitness narrative. The specification of the four disciples present (Simon, Andrew, James, and John) is unique to Mark and may reflect Peter's firsthand testimony -- early church tradition consistently identifies Mark as Peter's interpreter.
The verb ἤγειρεν ("he raised her up") is the same verb used throughout the New Testament for resurrection. While it simply means "to raise" in this context, Mark's audience may have heard resurrection overtones. Jesus takes her by the hand -- physical contact in healing is characteristic of Mark's Jesus -- and the fever departs instantly. That she "began to serve them" (διηκόνει αὐτοῖς) indicates both the completeness of the healing (no convalescence needed) and her response of grateful discipleship. The verb διακονέω ("to serve") is the same word used for the angels' ministry to Jesus in the wilderness (v. 13) and is the root of "deacon." In Mark, true discipleship is characterized by service.
This passage also reveals incidentally that Peter was married, a detail confirmed by Paul in 1 Corinthians 9:5.
Many Healed at Evening (vv. 32-34)
32 That evening, after sunset, people brought to Jesus all the sick and demon-possessed, 33 and the whole town gathered at the door. 34 And He healed many who were ill with various diseases and drove out many demons. But He would not allow the demons to speak, because they knew who He was.
32 And when evening came, after the sun had set, they were bringing to him all who were sick and those who were demon-possessed. 33 And the whole city was gathered together at the door. 34 And he healed many who were sick with various diseases and cast out many demons. And he would not permit the demons to speak, because they knew him.
Notes
The note that this took place "after sunset" is significant: the Sabbath ended at sundown, and only then could people carry their sick through the streets without violating Sabbath regulations. Mark's audience would have understood this detail as explaining why the crowd waited until evening.
The distinction between κακῶς ἔχοντας ("those who were sick") and δαιμονιζομένους ("those who were demon-possessed") shows that Mark, like the other Gospel writers, distinguishes between illness and demonic oppression, even though both are presented as conditions from which Jesus delivers people.
The word "many" (πολλούς) in v. 34 ("he healed many") has sometimes been read as implying that Jesus did not heal all who came. However, in Semitic usage, "many" often functions as an inclusive term equivalent to "all" (compare "the many" in Isaiah 53:12 and Romans 5:15). The parallel in Matthew 8:16 explicitly says "all." The renewed silencing of the demons ("he would not permit the demons to speak, because they knew him") reinforces the messianic secret: Jesus alone determines how his identity is disclosed.
Jesus Prays and Preaches in Galilee (vv. 35-39)
35 Early in the morning, while it was still dark, Jesus got up and went out to a solitary place to pray. 36 Simon and his companions went to look for Him, 37 and when they found Him, they said, "Everyone is looking for You!"
38 But Jesus answered, "Let us go on to the neighboring towns so I can preach there as well, for that is why I have come." 39 So He went throughout Galilee, preaching in their synagogues and driving out demons.
35 And rising very early, while it was still dark, he went out and departed to a desolate place, and there he was praying. 36 And Simon and those who were with him hunted for him, 37 and they found him and said to him, "Everyone is searching for you."
38 And he said to them, "Let us go on to the neighboring towns, so that I may proclaim the message there also, for this is why I came out." 39 And he went throughout all of Galilee, proclaiming the message in their synagogues and casting out demons.
Notes
Mark uses an accumulation of terms to emphasize the earliness of Jesus' departure: πρωῒ ἔννυχα λίαν -- literally "early, while still very much in the night." After a day of sustained public ministry, Jesus seeks solitude for prayer. Mark notes Jesus at prayer only three times in the Gospel (here, Mark 6:46, and Mark 14:32-42), and each instance comes at a critical juncture.
The verb used for the disciples' search, κατεδίωξεν ("hunted for" or "tracked down"), is an intensive compound that carries connotations of pursuit -- it is used elsewhere for pursuing an enemy or hunting prey. Simon and his companions are not casually looking; they are urgently pursuing Jesus because the crowds demand more. Their announcement, "Everyone is searching for you," reveals a fundamental misunderstanding: they assume Jesus should return to Capernaum to capitalize on his popularity.
Jesus' response redirects the mission: ἄγωμεν ἀλλαχοῦ ("let us go elsewhere"). The verb κηρύξω ("I may proclaim") uses the same root as κήρυξ ("herald"), emphasizing that Jesus' primary mission is proclamation, not healing. His words εἰς τοῦτο γὰρ ἐξῆλθον ("for this is why I came out") could refer to coming out of Capernaum, but more likely carries the deeper sense of having come forth from God for this purpose.
Cleansing a Leper (vv. 40-45)
40 Then a leper came to Jesus, begging on his knees: "If You are willing, You can make me clean."
41 Moved with compassion, Jesus reached out His hand and touched the man. "I am willing," He said. "Be clean!" 42 And immediately the leprosy left him, and the man was cleansed.
43 Jesus promptly sent him away with a stern warning: 44 "See that you don't tell anyone. But go, show yourself to the priest and present the offering Moses prescribed for your cleansing, as a testimony to them."
45 But the man went out and openly began to proclaim and spread the news. Consequently, Jesus could no longer enter a town in plain view, but He stayed out in solitary places. Yet people came to Him from every quarter.
40 And a leper came to him, imploring him and kneeling, saying to him, "If you are willing, you are able to make me clean."
41 And being moved with compassion, he stretched out his hand and touched him and said to him, "I am willing. Be made clean." 42 And immediately the leprosy departed from him, and he was made clean.
43 And he sternly warned him and immediately sent him away, 44 and said to him, "See that you say nothing to anyone, but go, show yourself to the priest and offer for your cleansing what Moses commanded, as a testimony to them."
45 But he went out and began to proclaim it freely and to spread the word, so that Jesus could no longer openly enter a city, but was out in desolate places. And they were coming to him from everywhere.
Notes
Leprosy in the biblical world encompassed a range of skin diseases (see Leviticus 13) and rendered a person ritually unclean -- excluded from the community, from worship, and from human contact. The leper's approach to Jesus is itself an act of desperate faith, since lepers were required to keep their distance and call out "Unclean!" (Leviticus 13:45-46).
The leper's words ἐὰν θέλῃς δύνασαί με καθαρίσαι ("if you are willing, you are able to make me clean") express confidence in Jesus' power but uncertainty about his willingness. He does not doubt Jesus' ability, only his intention. Jesus' response matches the structure perfectly: θέλω, καθαρίσθητι ("I am willing; be made clean").
A textual variant occurs in v. 41. Most manuscripts read σπλαγχνισθείς ("moved with compassion"), but Codex Bezae and some Old Latin witnesses read ὀργισθείς ("moved with anger"). The SBL text follows the latter, harder reading. If "anger" is original, it may reflect Jesus' indignation at the disease itself, at the social system that marginalized lepers, or at the powers of evil that cause human suffering. Most translations follow "compassion," but the variant deserves attention.
By touching a leper, Jesus should have become ritually unclean himself. Instead, the flow runs the other way: he does not become contaminated by human impurity but transforms it.
The verb ἐμβριμησάμενος ("sternly warned") in v. 43 is a strong word, used of horses snorting. It conveys intense emotion -- perhaps frustration, urgency, or deep feeling. Jesus commands the man to follow the Mosaic procedure for cleansing (Leviticus 14:1-32), showing respect for the Torah even as he demonstrates power that transcends it. The phrase εἰς μαρτύριον αὐτοῖς ("as a testimony to them") may mean either a testimony to the priests that genuine cleansing has occurred, or a testimony against them if they refuse to acknowledge God's work.
The reversal in v. 45 is sharp: the healed man disobeys Jesus' command and proclaims the news widely, with the result that Jesus, who began the chapter moving freely from town to town, is now confined to desolate places -- he has effectively taken the leper's place as an outsider. Yet the people still come to him "from everywhere," unable to be kept away from the one who brings wholeness.