15 God, your God, is going to raise up a prophet for you. God will raise him up from among your kinsmen, a prophet like me. Listen obediently to him. 16 This is what you asked God, your God, for at Horeb on the day you were all gathered at the mountain and said, "We can't hear any more from God, our God; we can't stand seeing any more fire. We'll die!" 17 And God said to me, "They're right; they've spoken the truth. 18 I'll raise up for them a prophet like you from their kinsmen. I'll tell him what to say and he will pass on to them everything I command him. 19 And anyone who won't listen to my words spoken by him, I will personally hold responsible. 20 "But any prophet who fakes it, who claims to speak in my name something I haven't commanded him to say, or speaks in the name of other gods, that prophet must die." 21 You may be wondering among yourselves, "How can we tell the difference, whether it was God who spoke or not?" Here's how: 22 If what the prophet spoke in God's name doesn't happen, then obviously God wasn't behind it; the prophet made it up. Forget about him.
Matthew Henry's Commentary on Deuteronomy 18:15-22
Commentary on Deuteronomy 18:15-22
(Read Deuteronomy 18:15-22)
It is here promised concerning Christ, that there should come a Prophet, great above all the prophets; by whom God would make known himself and his will to the children of men, more fully and clearly than he had ever done before. He is the Light of the world, John 12:48. Woe then to those who refuse to hearken to His voice, to accept His salvation, or yield obedience to His sway! But happy they who trust in Him, and obey Him. He will lead them in the paths of safety and peace, until He brings them to the land of perfect light, purity, and happiness. Here is a caution against false prophets. It highly concerns us to have a right touchstone wherewith to try the word we hear, that we may know what that word is which the Lord has not spoken. Whatever is against the plain sense of the written word, or which gives countenance or encouragement to sin, we may be sure is not that which the Lord has spoken.