Mark 1:3
The voice of one crying in the wilderness, Prepare the way of the Lord, make his paths strait."
Matthew 3:3
For this is the person spoken of by Isaiah the prophet, saying, "The voice of one crying aloud in the wilderness, Prepare the way of the Lord, make his paths strait."
Luke 3:4-6
as it is written in the book of the words of the prophet Isaiah, saying, "The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths strait:
John 1:15
John bore witness concerning him, and cried, saying, This is he of whom I said, He that is coming after me, is before me: because before me he was.
John 3:28-36
Ye yourselves bear me witness, that I said, I am not the Messiah, but that I am sent before him.
John 1:19-34
And this is the testimony of John, when the Jews sent from Jerusalem priests and Levites, that they should question him, Who art thou?