Nicodemus answered him, "How can these things be?"

 3:22-30 After these things Jesus and his disciples went to the district of Judaea. He spent some time there with them, and he was baptizing; and John was baptizing at Ainon, near Salem, because there was much water there. The people kept coming to him and being baptized, for John had not yet been thrown into prison. A discussion arose between some of John's disciples and a Jew about the matter of cleansing. So they came to John and said to him: "Rabbi, look now! The man who was with you on the other side of Jordan, the man to whom you bore your witness, is baptizing and they are all going to him." John answered: "A man can receive only what is given to him from heaven. You yourselves can testify that I said, 'I am not the Anointed One of God,' but, 'I have been sent before him.' He who has the bride is the bridegroom. But the friend of the bridegroom who stands and listens for him, rejoices at the sound of the voice of the bridegroom. So, then, my joy is complete. He must increase, but I must decrease." 