John 5:33
"You sent to John, and he both was and still is a witness to the truth.
John 1:6-8
There was a man sent from God, whose name was John.
John 1:15-27
John gave testimony concerning Him and cried aloud, saying, "This is He of whom I said, 'He who is coming after me has been put before me,' for He was before me."
John 1:29-34
The next day John saw Jesus coming towards him and exclaimed, "Look, that is the Lamb of God who is to take away the sin of the world!
John 3:26-36
they came to John and reported to him, "Rabbi, he who was with you on the other side of the Jordan and to whom you bore testimony is now baptizing, and great numbers of people are resorting to him."