John 1:1-7, 19-20, 29-34
In the beginning was the Word, and the Word was with God, and the Word was God.
He was in the beginning with God; all things were made through him, and without him was not anything made that was made. In him was life, and the life was the light of men. The light shines in the darkness, and the darkness has not overcome it. There was a man sent from God, whose name was John. He came for testimony, to bear witness to the light, that all might believe through him.
And this is the testimony of John, when the Jews sent priests and Levites from Jerusalem to ask him, "Who are you?" He confessed, he did not deny, but confessed, "I am not the Christ."
The next day he saw Jesus coming toward him, and said, "Behold, the Lamb of God, who takes away the sin of the world! This is he of whom I said, 'After me comes a man who ranks before me, for he was before me.' I myself did not know him; but for this I came baptizing with water, that he might be revealed to Israel."
And John bore witness, "I saw the Spirit descend as a dove from heaven, and it remained on him. 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.' And I have seen and have borne witness that this is the Son of God."