Verse 21. "But to Israel he saith" - In the very next verse, (Isaiah lxv. 2,) All day long have I stretched forth my hands, manifesting the utmost readiness and willingness to gather them all together under my protecting care; but I stretched forth my hands in vain, for they are a disobedient and gainsaying people. They not only disobey my command, but they gainsay and contradict my prophets. Thus the apostle proves, in answer to the objection made ver. 16, that the infidelity of the Jews was the effect of their own obstinacy; that the opposition which they are now making to the Gospel was foretold and deplored 700 years before; and that their opposition, far from being a proof of the insufficiency of the Gospel, proved that this was the grand means which God had provided for their salvation; and having rejected this, they could expect no other. And this gives the apostle opportunity to speak largely concerning their rejection in the following chapter.
I. IN the preceding chapter are several quotations from the law, the prophets, and the Psalms; and as the apostle seems to take them with considerable latitude of meaning, it has been thought that he only uses their words as being well calculated to express his sense, without paying any attention to their original import. This principle is too lax to be introduced in such solemn circumstances. Dr. Taylor has made some judicious and useful distinctions here. After observing that, if we allow this principle, no argument can be built on any of the apostle's quotations; and that it must have been an indifferent thing with him whether he did or did not understand the Scripture-as, on this supposition, they would serve him as well without as with the true meaning-he adds: the apostle was a strict and close quoter of the Scripture; but he did not always quote them in the same manner, or for the same purpose.
1. Sometimes his intention goes no farther than using the same strong expressions, as being equally applicable to the point in hand. So, ver. 6-8, he uses the words of Moses, not to prove any thing, nor as if he thought Moses spoke of the same subject, but only as intimating that the strong and lively expressions which Moses used concerning the doctrine he taught, were equally applicable to the faith of the Gospel. So, in the same manner, ver. 18, he quotes Psa. xix. 4, though it is likely (see the note in that place) that those expressions were used by the ancient Jews in application to the Messiah as the apostle applies them.
2. Sometimes the design of the quotation is only to show that the cases are parallel: or, that what happened in his times corresponded with what happened in former days. So Romans ii. 24; viii. 36; ix. 27-29; xi. 2-5, 8-10; xv. 21.
3. Sometimes the quotation is only intended to explain a doctrinal point, as chap. i. 17; iv. 6-8, 18-21; ix. 20, 21; x. 15; xv. 3.
4. Sometimes the quotation is designed to prove a doctrinal point. chap. iii. 4, 10-19; iv. 3-17; v. 12-14; ix. 7, 9, 12, 13, 15, 17; ver. 5, 11, 13; xii. 19, 20; xiii. 9; xiv. 11.
5. Sometimes it is the intention of the quotation to prove that something was predicted, or properly foretold in the prophetic writings, as chap. ix. 25, 26, 33; x. 16, 19-21; xi. 26, 27; xv. 9-13.
These things duly considered, it will appear that the apostle has every where shown a just regard to the true sense of the Scripture he quotes, in the view in which he quotes it.
These rules may help to vindicate the quotations in all the apostolic writings. And it is evident that we cannot form a true judgment upon any quotation, unless we take in the intention of the writer, or the view in which he quotes.
II. The apostle here makes a just and proper distinction between the righteousness or justification that is of the law, and that which is by faith in Christ. And, in his view of the former, shows it to be absolutely impossible; for if no man is to live thereby-to have spiritual and eternal life, but he who does these things; then salvation on that ground must be impossible; for, 1. The law makes no provision for the pardon of sin. 2. It affords no helps for the performance of duty. 3. It makes no allowances for imperfections in duty, or for imperfections is our nature. 4. Its commandments, necessarily, suppose a righteous soul, and a vigorous body; and it does not lower its claims to the fallen state of man. 5. It requires perfect obedience, not only in all things, but in all places and circumstances. The man who comes up to this standard, has ever been in it, and has never swerved from it, shall, by the law, live for ever. But no man, since the fall, ever did so or ever can do so: therefore, salvation by the works of the law is absolutely impossible. But, The righteousness or justification, which is by faith, receives Christ as an atoning sacrifice, by which all past sin is pardoned. Receives continual supplies of grace from Christ by the eternal Spirit, through which the man is enabled to love God with all his heart, soul, mind, and strength, and his neighbour as himself. 3.
This grace is afforded in sufficient degrees suited to all places, times, and circumstances, so that no trial can happen too great to be borne, as the grace of Christ is ever at hand to support and to save to the uttermost.
The law is the letter that killeth; the Gospel is the spirit that giveth life.
Reader, let thy whole soul say with the apostle, Thanks be unto God for his unspeakable gift!