Deuteronomy 31:20

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.

For when I shall have brought them into the land which I sware unto their fathers,.... To give it to them, and put them into the possession of it, even the land of Canaan, often thus described, and as it is by the following character: that floweth with milk and honey; aboundeth with all good things; see Exodus 3:8, and they shall have eaten and filled themselves, and waxen fat; that is, after they have for a considerable time enjoyed the good things of the land, and they abound with them, and increase in them, and have great fullness of them: then will they turn unto other gods: turn from the Lord who has brought them into all this plenty, from the fear, worship, and service of him, and turn to the worship of idols: and serve them: the works of men's hands, and at most but creatures, and not the Creator; than which nothing can be more absurd and stupid, as well as wicked and ungrateful: and provoke me: nothing being more provoking to the Lord than idolatry, it striking at his very nature, being, and glory: and break my covenant; now made with them; this being foretold by the Lord, which exactly came to pass in numerous instances, proves his precise foreknowledge of future events, even such as depend on the inclinations, dispositions, and wills of men.

For when I shall have brought them into the land which I sware unto their fathers, that floweth with milk and honey; and they shall have eaten and filled themselves, and waxen fat; {k} then will they turn unto other gods, and serve them, and provoke me, and break my covenant. (k) For this is the nature of flesh, no longer to obey God, than it is under the rod.

A witness for me against them - i. e., an attestation from their own mouths at once of God's benefits, their own duties, and their deserts when they should fall away. Being in verse it would be the more easily learned and kept in memory. The use of songs for such didactic purposes was not unknown to the legislators of antiquity. Compare also the advice of Paul, "teaching and admonishing one another in psalms and hymns and spiritual songs" Colossians 3:16 .

19. Now therefore write ye this song—National songs take deep hold of the memories and have a powerful influence in stirring the deepest feelings of a people. In accordance with this principle in human nature, a song was ordered to be composed by Moses, doubtless under divine inspiration, which was to be learnt by the Israelites themselves and to be taught to their children in every age, embodying the substance of the preceding addresses, and of a strain well suited to inspire the popular mind with a strong sense of God's favor to their nation.

20 . For I shall bring it into the land which I sware unto its fathers ] Deuteronomy 6:10 , but also in E. On flowing with milk and honey , see Deuteronomy 6:3 . and it shall eat and be satisfied and grow fat ] Cp. Deuteronomy 6:11 , Deuteronomy 8:12 , Deuteronomy 32:15 . Here even the deuteronomic phrases receive a peculiar form. And it will turn , as in Deuteronomy 31:18 ; despise me , not elsewhere in Deut., but in JE, Numbers 14:11 ; Numbers 14:23 ; Numbers 16:30 , and in the Song, ch. Deuteronomy 32:19 ; break my covenant , as in Deuteronomy 31:17 . The only plur. vbs are serve, despise . Deuteronomy 31:20

Moses and Joshua were to write the song, because they were both of them to strive to prevent the apostasy of the people; and Moses, as the author, was to teach it to the children of Israel, to make them learn it, that it might be a witness for the Lord (for Me) against the children of Israel. "This" is defined still further in Deuteronomy 31:20 , Deuteronomy 31:21 : if Israel, through growing satisfied and fat in its land, which was so rich in costly good, should turn to other gods, and the Lord should visit it in consequence with grievous evils and troubles, the song was to answer before Israel as a witness; i.e., not only serve the Lord as a witness to the people that He had foretold all the evil consequences of apostasy, and had given Israel proper warning (Knobel), but to serve, as we may see from Deuteronomy 31:20 , Deuteronomy 31:21 , and from the contents of the song, as a witness, on the one hand, that the Lord had conferred upon the people so many benefits and bestowed upon them such abundant blessings of His grace, that apostasy from Him was the basest ingratitude, for which they would justly be punished; and, on the other hand, that the Lord had not rejected His people in spite of the punishments inflicted upon them, but would once more have compassion upon them and requite their foes, and thus would sanctify and glorify Himself as the only true God by His judgments upon Israel and the nations.

The terms of the promise are strongly Deuteronomic: see Deuteronomy 6:2 ; Deuteronomy 25:15 , and (in the form ‘prolong days’) Deuteronomy 4:26 ; Deuteronomy 4:40 , Deuteronomy 5:33 , Deuteronomy 11:9 , Deuteronomy 17:20 , Deuteronomy 22:7 , Deuteronomy 30:18 , Deuteronomy 32:47 ; and, for the following clause, upon the land , &c., Deuteronomy 3:20 , Deuteronomy 11:17 ; Deuteronomy 11:31 , Deuteronomy 15:7 , Deuteronomy 16:20 , Deuteronomy 17:14 , Deuteronomy 18:9 , &c., and especially Deuteronomy 4:40 , Deuteronomy 25:15 . giveth ] is giving (i.e. is in the course of giving, is about to give); so in all the passages of Dt. just quoted (and in many similar ones in the same book besides). The standpoint of the Exodus is assumed. The land is not, as ‘giveth’ in itself might suggest, the possession of the individual Israelite, but Canaan.