Moses indeed said for Moses truly said unto the fathers, A.V. and T.R.; the Lord God for the Lord your God, A.V. and T.R.; from among for of, A.V.; to him shall ye hearken for him shall ye hear, A V.; speak for say, A.
V. Moses indeed said. Peter now verifies his assertion about the prophets in the previous verse by quoting from Moses, and referring to Samuel and those that came after. A prophet, etc. The quotation is from Deuteronomy 18:15-18.
That this was understood by the Jews to relate to some one great prophet who had not yet come, appears from the question "Art thou that prophet?" (John 1:21), and from the saying of the Jews after the miracle of the loaves and fishes, "This is of a truth that prophet that should come into the world" (John 6:14; John 7:40).
St. Peter here teaches that that prophet was none other than Christ himself, who was like unto Moses in the fullness of the revelation given unto him, in his being a Mediator between God and the people, in being the Author of a new law—the law of faith and love, in building a new tabernacle for God to inhabit, even the Church in which he will dwell for ever and ever (see Hebrews 1:1, Hebrews 1:2).