Mark 1:3
The voice of one crying in the wilderness, Make ready the way of the Lord, make his paths straight.
Matthew 3:3
For this is he that was spoken of by Isaiah the prophet, saying: The voice of one crying in the wilderness, Prepare the way of the Lord, make his paths straight.
Luke 3:4-6
as it is written in the book of the words of Isaiah the prophet, saying: The voice of one crying in the wilderness, Make ready the way of the Lord, make his paths straight;
John 1:15
John testified of him, and cried, saying: This is he of whom I said: He that comes after me, is now before me, for he existed before me.
John 3:28-36
You yourselves will testify for me, that I said, I am not the Christ, but that I am sent before him.
John 1:19-34
And this is the testimony of John, when the Jews sent priests and Levites from Jerusalem to ask him: Who are you?