12 It shall happen, because you listen to these ordinances, and keep and do them, that Yahweh your God will keep with you the covenant and the loving kindness which he swore to your fathers:
*Minor differences ignored. Grouped by changes, with first version listed as example.
Wherefore it shall come to pass. God appears so to act according to agreement, as to leave (His people) no hope of His favor, unless they perform their part of it; and undoubtedly this is the usual form of expression in the Law, in which the condition is inserted, that God will do good to His people if they have deserved it by their obedience. Still we must remember what we have elsewhere seen, that, after God has so covenanted with them, He Himself, in order that His promise may not be made of none effect, descends to the gratuitous promise of pardon, whereby He reconciles the unworthy to Himself. Thus the original covenant only avails to man's condemnation. But when salvation is offered to them gratuitously, their works at the same time become pleasing to God. Inasmuch, however, as the cause of reward is unconnected with men and their works, all calculation of merit is out of the question: still it is profitable to believers that a reward should be promised them if they walk in the commandments of God; since, in His inestimable liberality, He deals with them as if they did something to deserve it. In conclusion, Moses enumerates some of the proofs of God's favor, such as fecundity, and an abundance of the fruits of the earth. It is questionable whether by what is added at the end respecting the diseases of Egypt, he means the boils which were generated by the scattered ashes, (Exodus 9:8,) or the lice which infested both man and beast, (Exodus 8:17,) or whether he extends them to those diseases which had prevailed long before the departure of the people. I am disposed to embrace the latter opinion; [1] for in Deuteronomy 28:27, after mentioning "the botch of Egypt," he adds "emerods, and the scab, and the itch:" it is, therefore, probable that the Egyptians were subject to various maladies, from which Moses declares that the people should be free by special privilege, if only they obeyed God's Law.
1 - "Certain diseases, peculiar to Egypt, are meant; such as various diseases of the skin, as the scab, elephantiasis, plague, etc. Pliny, Nat. Hist., 26., calls Egypt the mother of such diseases. Even at the present day, there are in Egypt several peculiar diseases, especially ophthalmia, variolous diseases, and plague." -- Rosenmuller. Hengstenberg also, in his "Egypt and the Books of Moses," has an article on this subject, p. 454, confirmative of the above. He quotes Wagner as calling Egypt, in his Natural History of Man, "a great focus of the diseases in universal history."
The Lord - shall keep unto thee the covenant - So we find their continuance in the state of favor was to depend on their faithfulness to the grace of God. If they should rebel, though God had chosen them through his love, yet he would cast them off in his justice. The elect, we see, may become unfaithful, and so become reprobates. So it happened to 24,000 of them, whose carcasses fell in the wilderness because they had sinned; yet these were of the elect that came out of Egypt. Let him that standeth take heed lest he fall.
Wherefore it shall come to pass, if ye hearken to these judgments, and keep, and do them, that the LORD thy God shall keep unto thee the covenant and the (f) mercy which he sware unto thy fathers:
(f) This covenant is grounded in his free grace: therefore in recompensing their obedience, he respects his mercy and not their merits.
Wherefore it shall come to pass, if ye hearken to these judgments, and keep and do them,.... Attentively listen to the declaration made of them, and be careful to observe them:
that the Lord thy God shall keep unto thee the covenant and the mercy which he sware unto thy fathers; to bring them into the land of Canaan, and continue them in it; yea, to send the Messiah to them, and bring him the salvation of Israel out of Zion; see Luke 1:68.
We are in danger of having fellowship with the works of darkness if we take pleasure in fellowship with those who do such works. Whatever brings us into a snare, brings us under a curse. Let us be constant to our duty, and we cannot question the constancy of God's mercy. Diseases are God's servants; they go where he sends them, and do what he bids them. It is therefore good for the health of our bodies, thoroughly to mortify the sin of our souls; which is our rule of duty. Yet sin is never totally destroyed in this world; and it actually prevails in us much more than it would do, if we were watchful and diligent. In all this the Lord acts according to the counsel of his own will; but that counsel being hid from us, forms no excuse for our sloth and negligence, of which it is in no degree the cause. We must not think, that because the deliverance of the church, and the destruction of the enemies of the soul, are not done immediately, therefore they will never be done. God will do his own work in his own method and time; and we may be sure that they are always the best. Thus corruption is driven out of the hearts of believers by little and little. The work of sanctification is carried on gradually; but at length there will be a complete victory. Pride, security, and other sins that are common effects of prosperity, are enemies more dangerous than beasts of the field, and more apt to increase upon us.
The observance of these commandments would also bring great blessings (Deuteronomy 7:12-16). "If ye hearken to these demands of right" (mishpatim) of the covenant Lord upon His covenant people, and keep them and do them, "Jehovah will keep unto thee the covenant and the mercy which He hath sworn to thy fathers." In עקב, for אשׁר עקב (Genesis 22:18), there is involved not only the idea of reciprocity, but everywhere also an allusion to reward or punishment (cf. Deuteronomy 8:20; Numbers 14:24). חסד was the favour displayed in the promises given to the patriarchs on oath (Genesis 22:16).
The covenant and the mercy - That is, the covenant of mercy, which he out of his own mere grace made with them.
*More commentary available at chapter level.