Luke 3:15
As the people were in expectation, and all were questioning in their hearts concerning John, whether he might be the Christ,
John 1:19-28
And this is the testimony of John, when the Jews sent priests and Levites from Jerusalem to ask him, "Who are you?"
John 3:28-29
You yourselves bear me witness, that I said, 'I am not the Christ, but I have been sent before him.'
John 10:24
So the Jews gathered around him and said to him, "How long will you keep us in suspense? If you are the Christ, tell us plainly."