Original Verse:
John Chapter 1 Verse 21And they said to him, What then? Are you Elijah? And he said, I am not. Are you the prophet? And his answer was, I am not.

Reference Verses:
John Chapter 1 Verse 25And they put this question to him, saying, Why then are you giving baptism if you are not the Christ, or Elijah, or the prophet?
Malachi Chapter 4 Verse 5See, I am sending you Elijah the prophet before the day of the Lord comes, that great day, greatly to be feared.
Matthew Chapter 11 Verse 9-11 [9] But why did you go out? to see a prophet? Yes, I say to you, and more than a prophet. [10] This is he of whom it has been said, See, I send my servant before your face, who will make ready your way before you. [11] Truly I say to you, Among the sons of women there has not been a greater than John the Baptist: but he who is least in the kingdom of heaven is greater than he.
Matthew Chapter 17 Verse 10-13 [10] And his disciples, questioning him, said, Why then do the scribes say that Elijah has to come first? [11] And in answer he said, Elijah truly has to come and put all things right: [12] But I say to you that Elijah has come, and they had no knowledge of him, but did to him whatever they were pleased to do; the same will the Son of man undergo at their hands. [13] Then the disciples saw that he was talking to them of John the Baptist.
Mark Chapter 9 Verse 13But I say to you that Elijah has come, and they have done to him whatever they were pleased to do, even as the Writings say about him.
Luke Chapter 1 Verse 76-77 [76] And you, child, will be named the prophet of the Most High: you will go before the face of the Lord, to make ready his ways; [77] To give knowledge of salvation to his people, through the forgiveness of sins,
Deuteronomy Chapter 18 Verse 18I will give them a prophet from among themselves, like you, and I will put my words in his mouth, and he will say to them whatever I give him orders to say.
Acts Chapter 3 Verse 22For Moses said, The Lord will give you a prophet from among your people, like me; you will give ear to everything which he will say to you.
Acts Chapter 7 Verse 37This is the same Moses, who said to the children of Israel, God will give you a prophet from among your brothers, like me.
John Chapter 6 Verse 14And when the people saw the sign which he had done, they said, Truly, this is the prophet who is to come into the world.
John Chapter 7 Verse 40When these words came to their ears, some of the people said, This is certainly the prophet.
Deuteronomy Chapter 18 Verse 15The Lord your God will give you a prophet from among your people, like me; you will give ear to him;
Luke Chapter 1 Verse 17And he will go before his face in the spirit and power of Elijah, turning the hearts of fathers to their children, and wrongdoers to the way of righteousness; to make ready a people whose hearts have been turned to the Lord.
Matthew Chapter 11 Verse 14And if you are able to see it, this is Elijah who was to come.
John Chapter 17 Verse 10-13 [10] (All mine are yours, and yours are mine) and I have glory in them. [11] And now I will be no longer in the world, but they are in the world and I come to you. Holy Father, keep them in your name which you have given to me, so that they may be one even as we are one. [12] While I was with them I kept them safe in your name which you have given to me: I took care of them and not one of them has come to destruction, but only the son of destruction, so that the Writings might come true. [13] And now I come to you; and these things I say in the world so that they may have my joy complete in them.
Matthew Chapter 16 Verse 14And they said, Some say, John the Baptist; some, Elijah; and others, Jeremiah, or one of the prophets.