John 1:23
He said: I am the voice of one crying in the wilderness, Make straight the way of the Lord; as said the prophet Isaiah.
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.
Mark 1:3
The voice of one crying in the wilderness, Make ready the way of the Lord, make his paths straight.
Luke 1:16-17
And many of the sons of Israel shall he turn to the Lord their God.
Luke 1:76-79
And you, child, shall be called the prophet of the Most High; for you shall go before the face of the Lord, to make ready his ways,
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 3:28
You yourselves will testify for me, that I said, I am not the Christ, but that I am sent before him.