John 1:20
And he confessed and denied not, and confessed, I am not the Christ.
Matthew 3:11-12
I indeed baptize you with water to a change of mind; but he that comes after me is mightier than I, whose shoes I am not fit to bear; he shall baptize you with the Holy Spirit, and fire;
Mark 1:7-8
and preached, saying, After me comes one mightier than I, the strings of whose shoes I am not fit to stoop down and untie;
Luke 3:15-17
And the people being in expectation, and all doubting in their minds concerning John, whether he was the Christ,
John 3:28-36
You yourselves bear me witness, that I said, I am not the Christ, but am sent before him.