John 1:23-28 New Revised Standard Version (NRSV)
23 He said,
“I am the voice of one crying out in the wilderness,
as the prophet Isaiah said.
24 Now they had been sent from the Pharisees. 25 They asked him, “Why then are you baptizing if you are neither the Messiah,[a] nor Elijah, nor the prophet?” 26 John answered them, “I baptize with water. Among you stands one whom you do not know, 27 the one who is coming after me; I am not worthy to untie the thong of his sandal.” 28 This took place in Bethany across the Jordan where John was baptizing.