John 1:19
"And this is the record of John, when the Jews sent priests and Levites from Jerusalem to ask him, Who art thou?"
Cross References (ranked by relevance)
Then came the Jews round about him, and said unto him, How long dost thou make us to doubt? If thou be the Christ, tell us plainly.
Then said Paul, John verily baptized with the baptism of repentance, saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus.
And as John fulfilled his course, he said, Whom think ye that I am? I am not he. But, behold, there cometh one after me, whose shoes of his feet I am not worthy to loose.
Then answered the Jews and said unto him, What sign shewest thou unto us, seeing that thou doest these things?