For ye know how we have dwelt in the land of Egypt,.... How long they and their fathers had dwelt there, the number of years they had been in the land, as the Targum of Jonathan, which was upwards of two hundred years; and being a country the inhabitants of which were much given to idolatry, they had seen many of their idols, and much of their idolatrous worship; and their hearts had been apt to be ensnared by it, and the minds of some tinctured with it, and the remembrance thereof might make ill impressions on them; to remove or prevent which this covenant was made:

and how we came through the nations which ye passed by; as the Edomites, Ammonites, Moabites, and Midianites, as Aben Ezra observes, through whose borders they came, as they passed by their countries in their journeys in the wilderness.

The summons to enter into the covenant of the Lord is explained by Moses first of all by an exposition of the evil results which would follow from apostasy from the Lord, or the breach of His covenant. This exposition he introduces with an allusion to the experience of the people with reference to the worthlessness of idols, both in Egypt itself, and upon their march through the nations, whose territory they passed through (Deuteronomy 29:16, Deuteronomy 29:17). The words, "for ye have learned how we dwelt in Egypt, and passed through the nations...and have seen their abominations and their idols" (gillulim: lit., clods, see Leviticus 26:30), have this signification: In our abode in Egypt, and upon our march through different lands, ye have become acquainted with the idols of these nations, that they are not gods, but only wood and stone (see at Deuteronomy 4:28), silver and gold. את־אשׁר, as in Deuteronomy 9:7, literally "ye know that which we dwelt,' i.e., know what our dwelling there showed, what experience we gained there of the nature of heathen idols.

(For ye know how we have dwelt in the land of Egypt; and how we came through the nations which ye passed by;

29:16 Egypt - Where you have seen their idolatries, and learned too much of them, as the golden calf shewed, and therefore have need to renew your covenant with God; where also we were in dreadful bondage whence God alone hath delivered us, to whom therefore we are deeply obliged, and have all reason to renew our covenant with him. Through the nations - With what hazard, if God had not appeared for us!

29:10-21 The national covenant made with Israel, not only typified the covenant of grace made with true believers, but also represented the outward dispensation of the gospel. Those who have been enabled to consent to the Lord's new covenant of mercy and grace in Jesus Christ, and to give up themselves to be his people, should embrace every opportunity of renewing their open profession of relation to him, and their obligation to him, as the God of salvation, walking according thereto. The sinner is described as one whose heart turns away from his God; there the mischief begins, in the evil heart of unbelief, which inclines men to depart from the living God to dead idols. Even to this sin men are now tempted, when drawn aside by their own lusts and fancies. Such men are roots that bear gall and wormwood. They are weeds which, if let alone, overspread the whole field. Satan may for a time disguise this bitter morsel, so that thou shalt not have the natural taste of it, but at the last day, if not before, the true taste shall be discerned. Notice the sinner's security in sin. Though he hears the words of the curse, yet even then he thinks himself safe from the wrath of God. There is scarcely a threatening in all the book of God more dreadful than this. Oh that presumptuous sinners would read it, and tremble! for it is a real declaration of the wrath of God, against ungodliness and unrighteousness of man.