Ye shall therefore keep my statutes. Although Moses introduces this passage, where he exhorts the Israelites to cultivate chastity in respect to marriage, and not to fall into the incestuous pollutions of the Gentiles, yet, as it is a remarkable one, and contains general instruction, from whence Paul derives his definition of the righteousness of the Law, (Romans 10:5,) it seems to me to come in very appropriately here, inasmuch as it sanctions and confirms the Law by the promise of reward. The hope of eternal life is, therefore, given to all who keep the Law; for those who expound the passage as referring to this earthly and transitory life are mistaken. [1] The cause of this error was, because they feared that thus the righteousness of faith might be subverted, and salvation grounded on the merit of works. But Scripture does not therefore deny that men are justified by works, because the Law itself is imperfect, or does not give instructions for perfect righteousness; but because the promise is made of none effect by our corruption and sin. Paul, therefore, as I have just said, when he teaches that righteousness is to be sought for in the grace of Christ by faith, (Romans 10:4,) proves his statement by this argument, that none is justified who has not fulfilled what the Law commands. Elsewhere also he reasons by contrast, where he contends that the Law does not accord with faith as regards the cause of justification, because the Law requires works for the attainment of salvation, whilst faith directs us to Christ, that we may be delivered from the curse of the Law. Foolishly, then, do some reject as an absurdity the statement, that if a man fulfills the Law he attains to righteousness; for the defect does not arise from the doctrine of the Law, but from the infirmity of men, as is plain from another testimony given by Paul. (Romans 8:3.) We must observe, however, that salvation is not to be expected from the Law unless its precepts be in every respect complied with; for life is not promised to one who shall have done this thing, or that thing, but, by the plural word, full obedience is required of us. The pratings of the Popish theologians about partial righteousness are frivolous and silly, since God embraces at once all the commandments; and who is there that can boast of having thoroughly fulfilled them? If, then, none was ever clear of transgression, or ever will be, although God by no means deceives us, yet the promise becomes ineffectual, because we do not perform our part of the agreement.

Footnotes

1 - "This some understand only of temporal life and prosperity in this world, Origen, Tostat. Oleaster, Vatablus; and make this to be the meaning, -- that, as the transgressors of the Law were to die, so they which kept it should preserve their life, Thom. Aquin. 1. 2. q. 100, a. 12; but I prefer rather Hesychius' judgment, -- Per quas oeterna vita hominibus datur," etc. -- Willet Hexapla, in loco. There appears to be unusual discrepancy on this point between the commentators, whether Romanist or Protestant. Bush and Holden apply it to temporal life. Bonar says, "If, as most think, we are to take, in this place, the words live in them,' as meaning eternal life to be got by them,' the scope of the passage is, that so excellent are God's laws, and every special minute detail of these laws, that if a man were to keep these always and perfectly, the very keeping would be eternal life to him. And the quotations in Romans 10:5, and Galatians 3:12, would seem to determine this to be the true and only sense here." C.'s view appears to be confirmed by our Lord's reply in Matthew 19:17, referred to in Poole's Synopsis.

If a man keeps the "statutes" (i. e. the ordinances of Leviticus 18:4) and "judgments" of the divine law, he shall not be "cut off from his people" (compare Leviticus 18:29), he shall gain true life, the life which connects him with Yahweh through his obedience. See the margin reference and Luke 10:28; Romans 10:5; Galatians 3:12.

Ye shall therefore keep my statutes, and my judgments: which if a man do, he shall live in them: (b) I [am] the LORD.
(b) And therefore you ought to serve me alone, as my people.

Ye shall therefore keep my statutes, and my judgments,.... The same as before; these they were to keep in their minds and memories, and to observe them and do them:
which if a man do he shall live in them; live a long life in the land of Canaan, in great happiness and prosperity, see Deuteronomy 30:20; for as for eternal life, that was never intended to be had, nor was it possible it could be had and enjoyed by obedience to the law, which fallen man is unable to keep; but is what was graciously promised and provided the covenant of grace, before the world was, to come through Christ, as a free gift to all that believe in him, see Galatians 3:11; though some Jewish writers interpret this of eternal life, as Jarchi, Aben Ezra, and Ben Gersom:
I am the Lord; that has enjoined these statutes and judgments, and promised life to the doers of them, able and faithful to perform what is promised.

Ye shall therefore keep my statutes, and my judgments: which if a man do, he shall live in them--A special blessing was promised to the Israelites on condition of their obedience to the divine law; and this promise was remarkably verified at particular eras of their history, when pure and undefiled religion prevailed among them, in the public prosperity and domestic happiness enjoyed by them as a people. Obedience to the divine law always, indeed, ensures temporal advantages; and this, doubtless, was the primary meaning of the words, "which if a man do, he shall live in them." But that they had a higher reference to spiritual life is evident from the application made of them by our Lord (Luke 10:28) and the apostle (Romans 10:2).

"The man who does them (the ordinances of Jehovah) shall live (gain true life) through them" (see at Exodus 1:16 and Genesis 3:22).

He shall live in them - Not only happily here, but eternally hereafter. This is added as a powerful argument why they should follow God's commands, rather than mens examples, because their life and happiness depend upon it. And though in strictness, and according to the covenant of works they could not challenge life for so doing, except their obedience was universal, perfect, constant and perpetual, and therefore no man since the fall could be justified by the law, yet by the covenant of grace this life is promised to all that obey God's commands sincerely.