John 1:23

23 "I am the voice," he replied, "of one crying aloud, `Make straight the Lord's way in the Desert,' fulfilling the words of the Prophet Isaiah."

John 1:23 In-Context

21 "What then?" they inquired; "are you Elijah?" "I am not," he said. "Are you the Prophet?" "No," he answered.

22 So they pressed the question. "Who are you?" they said--"that we may take an answer to those who sent us. What account do you give of yourself?"

23 "I am the voice," he replied, "of one crying aloud, `Make straight the Lord's way in the Desert,' fulfilling the words of the Prophet Isaiah."

24 They were Pharisees who had been sent.

25 Again they questioned him. "Why then do you baptize," they said, "if you are neither the Christ nor Elijah nor the Prophet?"