John 1:22-27

They said therefore 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 Isaiah the prophet. And they had been sent from the Pharisees. And they asked him, and said unto him, Why then baptizest thou, if thou art not the Christ, neither Elijah, neither the prophet? John answered them, saying, I baptize in water: in the midst of you standeth one whom ye know not, even he that cometh after me, the latchet of whose shoe I am not worthy to unloose.