29 The next day he saw Jesus coming toward him, and said, "Behold, the Lamb of God, who takes away the sin of the world! 30 This is he of whom I said, 'After me comes a man who ranks before me, because he was before me.' 31 I myself did not know him, but for this purpose I came baptizing with water, that he might be revealed to Israel." 32 And John bore witness: "I saw the Spirit descend from heaven like a dove, and it remained on him. 33 I myself did not know him, but he who sent me to baptize with water said to me, 'He on whom you see the Spirit descend and remain, this is he who baptizes with the Holy Spirit.' 34 And I have seen and have borne witness that this is the Son of God."
35 The next day again John was standing with two of his disciples, 36 and he looked at Jesus as he walked by and said, "Behold, the Lamb of God!"
37 The two disciples heard him say this, and they followed Jesus. 38 Jesus turned and saw them following and said to them, "What are you seeking?" And they said to him, "Rabbi" (which means Teacher), "where are you staying?" 39 He said to them, "Come and you will see." So they came and saw where he was staying, and they stayed with him that day, for it was about the tenth hour.[1] 40 One of the two who heard John speak and followed Jesus[2] was Andrew, Simon Peter's brother. 41 He first found his own brother Simon and said to him, "We have found the Messiah" (which means Christ). 42 He brought him to Jesus. Jesus looked at him and said, "So you are Simon the son of John? You shall be called Cephas" (which means Peter[3]).
Matthew Henry's Commentary on John 1:29-42
Commentary on John 1:29-36
(Read John 1:29-36)
John saw Jesus coming to him, and pointed him out as the Lamb of God. The paschal lamb, in the shedding and sprinkling of its blood, the roasting and eating of its flesh, and all the other circumstances of the ordinance, represented the salvation of sinners by faith in Christ. And the lambs sacrificed every morning and evening, can only refer to Christ slain as a sacrifice to redeem us to God by his blood. John came as a preacher of repentance, yet he told his followers that they were to look for the pardon of their sins to Jesus only, and to his death. It agrees with God's glory to pardon all who depend on the atoning sacrifice of Christ. He takes away the sin of the world; purchases pardon for all that repent and believe the gospel. This encourages our faith; if Christ takes away the sin of the world, then why not my sin? He bore sin for us, and so bears it from us. God could have taken away sin, by taking away the sinner, as he took away the sin of the old world; but here is a way of doing away sin, yet sparing the sinner, by making his Son sin, that is, a sin-offering, for us. See Jesus taking away sin, and let that cause hatred of sin, and resolutions against it. Let us not hold that fast, which the Lamb of God came to take away. To confirm his testimony concerning Christ, John declares the appearance at his baptism, in which God himself bore witness to him. He saw and bare record that he is the Son of God. This is the end and object of John's testimony, that Jesus was the promised Messiah. John took every opportunity that offered to lead people to Christ.
Commentary on John 1:37-42
(Read John 1:37-42)
The strongest and most prevailing argument with an awakened soul to follow Christ, is, that it is he only who takes away sin. Whatever communion there is between our souls and Christ, it is he who begins the discourse. He asked, What seek ye? The question Jesus put to them, we should all put to ourselves when we begin to follow Him, What do we design and desire? In following Christ, do we seek the favour of God and eternal life? He invites them to come without delay. Now is the accepted time, 2 Corinthians 6:2. It is good for us to be where Christ is, wherever it be. We ought to labour for the spiritual welfare of those related to us, and seek to bring them to Him. Those who come to Christ, must come with a fixed resolution to be firm and constant to him, like a stone, solid and stedfast; and it is by his grace that they are so.