What prophet is being referred to in John 1:21?

Question

At the beginning of the John in the New Testament, the Jews are asking John who he is.

“And this is the record of John, when the Jews sent priests and Levites from Jerusalem to ask him, Who art thou? And he confessed, and denied not; but confessed, I am not the Christ. And they asked him, What then? Art thou Elias? And he saith, I am not. Art thou that prophet? And he answered, No."
King James Bible John 1:19-21

After asking about the Christ and Elias, they then ask about "that prophet". It can't be Christ or Elias since they just asked about them - who else could it be?

Answer 1

Refer to Deuteronomy 18:15

Answer 2

He was speaking of himself. Being a "voice".

20. I am not the Christ - For many supposed he was.

Verse 21. Art thou Elijah? - He was not that Elijah (the Tishbite) of whom they spoke. Art thou the prophet - Of whom Moses speaks, Deut. xviii, 15.

Verse 23. He said - I am that forerunner of Christ of whom Isaiah speaks. I am the voice - As if he had said, Far from being Christ, or even Elijah, I am nothing but a voice: a sound that so soon as it has expressed the thought of which it is the sign, dies into air, and is known no more. Isaiah xl, 3.

Verse 24. They who were sent were of the Pharisees - Who were peculiarly tenacious of old customs, and jealous of any innovation (except those brought in by their own scribes) unless the innovator had unquestionable proofs of Divine authority.

Verse 25. They asked him, Why baptizest thou then? - Without any commission from the sanhedrim? And not only heathens (who were always baptized before they were admitted to circumcision) but Jews also?

Answer 3

Christians know that the Christ and the Messiah are one and the same. This was not always so. The pharasees believed that these were two different people, a Priest and a King.

Answer 4

dunno sorry