John 1:20
And he declared, and did not deny; and he declared, I am not the Christ.
Matthew 3:11-12
I indeed baptize you in water, for repentance; but he that cometh after me is mightier than I, whose sandals I am not worthy to bear; he will baptize you in the Holy Spirit and in fire.
Mark 1:7-8
And he preached, saying, There cometh after me one mightier than I, the latchet of whose sandals I am not worthy to stoop down and loose.
Luke 3:15-17
And while the people were in expectation, and all were considering in their hearts concerning John, whether he were the Christ,
John 3:28-36
Ye yourselves bear me witness, that I said, I am not the Christ, but that I was sent before that man.