John Gills Exposition of the Bible Commentary - Deuteronomy 18:22
When a prophet speaketh in the name of the Lord ,.... Says he comes from God, is sent by him, and has a commission from him to say so: if the thing follow not, nor come to pass ; as the prophecy of Hananiah, Jeremiah 28:3 that is the thing which the Lord hath not spoken; or otherwise it would have come to pass, unless when a condition is either expressed or implied, as the repentance or disobedience of a people; see Jeremiah 18:7 . but the prophet hath spoken it presumptuously ;... read more
Matthew Henry's Complete Commentary - Deuteronomy 18:15-22
Here is, I. The promise of the great prophet, with a command to receive him, and hearken to him. Now, 1. Some think it is the promise of a succession of prophets, that should for many ages be kept up in Israel. Besides the priests and Levites, their ordinary ministers, whose office it was to teach Jacob God's law, they should have prophets, extraordinary ministers, to reprove them for their faults, remind them of their duty, and foretel things to come, judgments for warning and deliverances... read more