16 (For you have in mind how we were living in the land of Egypt; and how we came through all the nations which were on your way; 17 And you have seen their disgusting doings, and the images of wood and stone and silver and gold which were among them:) 18 So that there may not be among you any man or woman or family or tribe whose heart is turned away from the Lord our God today, to go after other gods and give them worship; or any root among you whose fruit is poison and bitter sorrow; 19 If such a man, hearing the words of this oath, takes comfort in the thought that he will have peace even if he goes on in the pride of his heart, taking whatever chance may give him: 20 The Lord will have no mercy on him, but the wrath of the Lord will be burning against that man, and all the curses recorded in this book will be waiting for him, and the Lord will take away his name completely from the earth.
Matthew Henry's Commentary on Deuteronomy 29:16-20
Commentary on Deuteronomy 29:10-21
(Read Deuteronomy 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.