They came to John, and said to him, "Rabbi, he who was with you beyond the Jordan, to whom you have testified, behold, the same baptizes, and everyone is coming to him."

 When Nicodemus came to Jesus, he said that no one could help being impressed with the signs and wonders that he did. Jesus' answer was that it was not the signs and the wonders that were really important; the important thing was such a change in a man's inner life that it could only be described as a new birth. 