John 1:19-28 records the direct interrogation of John, where he denies being the Christ and explains his role — answering the crowd's speculation.

John 3:28 has John himself declaring 'I am not the Christ' — directly responding to the question raised by the people.

John 1:20 has John's emphatic confession 'I am not the Christ' — a direct answer to the people's wondering.

Acts 13:25 quotes John's denial of being the Christ and his pointing to the coming one, confirming his role from early Christian preaching.