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 Esaias."
Cross References (ranked by relevance)
Mark 1:3
18
The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.
Matthew 3:3
17
For this is he that was spoken of by the prophet Esaias, saying, The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.
John 3:28
14
Ye yourselves bear me witness, that I said, I am not the Christ, but that I am sent before him.