16 And the Lord said to Moses, Now you are going to rest with your fathers; and this people will be false to me, uniting themselves to the strange gods of the land where they are going; they will be turned away from me and will not keep the agreement I have made with them.

Matthew Henry's Commentary on Deuteronomy 31:16

Commentary on Deuteronomy 31:14-22

(Read Deuteronomy 31:14-22)

Moses and Joshua attended the Divine Majesty at the door of the tabernacle. Moses is told again that he must shortly die; even those who are most ready and willing to die, need to be often reminded of its coming. The Lord tells Moses, that, after his death, the covenant he had taken so much pains to make between Israel and their God, would certainly be broken. Israel would forsake Him; then God would forsake Israel. Justly does he cast those off who so unjustly cast him off. Moses is directed to deliver them a song, which should remain a standing testimony for God, as faithful to them in giving them warning, and against them, as persons false to themselves in not taking the warning. The word of God is a discerner of the thoughts and intents of men's hearts, and meets them by reproofs and correction. Ministers who preach the word, know not the imaginations of men; but God, whose word it is, knows perfectly.