Passage cross-references.

Then said Paul, John verily baptized with the baptism of repentance, saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus.

That was the true Light, which lighteth every man that cometh into the world.

But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:

And John bare record, saying, I saw the Spirit descending from heaven like a dove, and it abode upon him. …

And looking upon Jesus as he walked, he saith, Behold the Lamb of God!

Ye sent unto John, and he bare witness unto the truth. …

John bare witness of him, and cried, saying, This was he of whom I spake, He that cometh after me is preferred before me: for he was before me.

John answered them, saying, I baptize with water: but there standeth one among you, whom ye know not; …

And they came unto John, and said unto him, Rabbi, he that was with thee beyond Jordan, to whom thou barest witness, behold, the same baptizeth, and all men come to him. …

For the grace of God that bringeth salvation hath appeared to all men,

The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.

And to make all men see what is the fellowship of the mystery, which from the beginning of the world hath been hid in God, who created all things by Jesus Christ:

Who will have all men to be saved, and to come unto the knowledge of the truth.

And this is the record of John, when the Jews sent priests and Levites from Jerusalem to ask him, Who art thou?