Commentaries
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.
14, 15. the Lord said unto Moses, …call Joshua, and present yourselves in the tabernacle of the congregation—Joshua had been publicly designated to the office of commander by Moses [Nu 27:22, 23]; and God was pleased to confirm his appointment by the visible symbols of His presence and approval. As none but the priests were privileged to enter the sanctuary, it is probable that this significant manifestation of the cloudy pillar was made while the leaders stood at the door of the tabernacle.