John 1:20
he confessed, and denied not; but declared openly, I am not the Christ.
Matthew 3:11-12
I indeed baptize you with water unto repentance; but He that cometh after me, is mightier than I, whose shoes I am not worthy to carry: He shall baptize you with the holy Spirit and with fire.
Mark 1:7-8
saying, There cometh after me one mightier than I, the latchet of whose shoes I am not worthy to stoop and unloose.
Luke 3:15-17
Now as the people were in suspense, and were all thinking in their hearts concerning John, whether he were the Christ or not,
John 3:28-36
Ye your selves bear me witness, that I said, I am not the Christ, but am sent before Him.