Cross reference
John 1:8
8 that one was not the Light, but -- that he might testify about the Light.
John 1:20
20 and he confessed and did not deny, and confessed -- `I am not the Christ.'
John 3:28
28 ye yourselves do testify to me that I said, I am not the Christ, but, that I am having been sent before him;
Acts 19:4
4 And Paul said, `John, indeed, did baptize with a baptism of reformation, saying to the people that in him who is coming after him they should believe -- that is, in the Christ -- Jesus;'