John 1:29-34
Chapter 1
29
The next day, John saw Jesus coming toward him and said:
“There is the Lamb of God who takes away the sin of the world! :
30
It is he whom I said: A man who comes after me is already ahead of me because he was before me.
31
I myself did not know him, but I came baptizing to prepare the way for him, so that he might be revealed in Israel.
32
John also gave this testimony:
“I saw the Spirit come down on him like a dove from heaven and rest on him.
33
I didn’t know him myself, but God, who sent me to baptize, told me, ‘You will see the Spirit come down and rest on the one who baptizes with the Holy Spirit.’
34
Yes, I have seen it! And I declare that this is the Chosen One of God!”

Commentaries
Testimony of John the Baptist.
Through this testimony, the evangelist provides a brief overview of Jesus’ personality.
Indirect Testimony (19-28). Before the Jewish authorities, the Baptist confesses that he is not the Messiah, Elijah, or the prophet, but the voice crying in the wilderness; his testimony is prophetic: he prepares the way for the Lord.
Direct Testimony (29-31). Before Israel, meaning before the chosen people, he calls Jesus the “Lamb of God.” This title reflects the theological unity of the Gospel and includes the following aspects: “Conquering Lamb”: an apocalyptic image representing the sovereign and messianic leader (Rev 5:11); “sacrificial Lamb”: an image of the Servant of the Lord who redeems through his death (Is 53:7-12); “liberating Passover Lamb”: Jesus offers himself up for the sins of the world, like the lamb of the Jewish Passover (Ex 12:46). Jesus on the cross, like the Passover lamb, will have none of his bones broken (19:36). How does Jesus take away the sin of humanity? By taking on human nature and offering himself on the cross through voluntary sacrifice and loving service. From the cross, he gives us the Holy Spirit (19:30), who purifies and forgives all our sins (20:22ff).
Baptism of Jesus (32-34). The evangelist does not describe Jesus’ baptism but references it through John the Baptist’s testimony. The primary focus of the vision is the Spirit. Jesus is given a specific role: to baptize in the Spirit (33), a task that belongs to God, who will pour out His Spirit on the community (Is 32:15; 44:3; Ezk 36:25-29; Jl 3:1ff). Because the Spirit dwells permanently in Him, Jesus Christ is the great architect of the universal gift of the Spirit and the leader of a holy people.