John 1:24 (KJV)

Then said they unto him, Who art thou? that we may give an answer to them that sent us. What sayest thou of thyself?

He said, I am the voice of one crying in the wilderness, Make straight the way of the Lord, as said the prophet Esaias.

And they which were sent were of the Pharisees.

And they asked him, and said unto him, Why baptizest thou then, if thou be not that Christ, nor Elias, neither that prophet?

John answered them, saying, I baptize with water: but there standeth one among you, whom ye know not;