Concerning "THE Prophet"
Concerning "the prophet" of Deuteronomy 18:15ff: This man was believed by the Jews to be the Messiah. The disciples most certainly believed Jesus to be "the prophet" as evidenced by Peter's sermon in Acts 3 where he says, "Moses indeed said, 'A prophet shall the Lord God raise up unto you from among your brethren, like unto me. To him shall ye hearken in all things whatsoever he shall speak unto you.'"
This is referencing the time at which Moses received the Ten Commandments in Exodus 20. Verse 18ff says, "
We must conclude from this that "the prophet" CANNOT be God Himself because the whole point of this episode is that the prophet acts as a human intermediary between God and the people. The people said, "You speak to us, and we will hear; but let not God speak to us, lest we die." And so as a result of this, according to Deuteronomy 18, God said he would send "the prophet". He would be "like you", that is, like Moses, raised up from among the people of Israel, and this prophet will speak the words of God, he will speak ALL that God commands him. If Jesus is indeed God Himself incarnated as Trinitarians believe, then Jesus CANNOT be "the prophet" of Deuteronomy 18.
For there is one God, and one Mediator between God and men, the man Christ Jesus (1 Tim. 2:5).