Happy is the man that shall do this. When he calls those persons "happy" who, having embraced this doctrine, devote themselves to walk uprightly, he indirectly leads us to conclude that many will be deaf or disobedient; but, lest their wickedness or indifference should retard the elect, he recommends the exhortation which he has given from the advantage which it yields. Thus, in order that believers may abandon all delay, he exclaims that they are "happy" to whom it hath been given [1] to possess such wisdom. Keeping the Sabbath. We have said that the words "justice" and "judgment," in the preceding verse, include all the duties of the second table; but here he mentions the Sabbath, which belongs to the first table. I reply, as I have already mentioned briefly, that they who live inoffensively and justly with their neighbors, testify that they serve God; and therefore we need not wonder that the Prophet, after having glanced at the second table, mentions also the first; for both ought to be joined together In a word, Isaiah declares that he who shall obey God by keeping his law perfectly shall be "happy;" for the salvation and the righteousness of God shall belong to him. Since, therefore, men wander at random amidst their contrivances, and adopt various methods of worshipping God, he shows that there is only one way, that is, when men endeavor to frame and regulate their life by the injunction of the Law; for otherwise they will weary themselves in vain by taking other roads. In short, this is a remarkable passage, showing that nothing pleases God but keeping the Law. If the question be put, "Can men obtain righteousness and salvation by their own works?" the reply will be easy; for the Lord does not offer salvation to us, as if he had been anticipated by our merits, (for, on the contrary, we are anticipated by him,) but offers himself freely to us, and only demands that we, on our part, draw near to him. Since therefore he willingly invites us, since he offers righteousness through free grace, we must make every effort not to be deprived of so great a benefit. Again, because the Sabbath, as Moses declares, (Exodus 31:13, 17) and as Ezekiel 20:12 repeats, was the most important symbol of the worship of God, so by that figure of speech in which a part is taken for the whole, and which is called a synecdoche, the Sabbath includes all the exercises of religion. But we must view the Sabbath in connection with everything that attends it; for God does not rest satisfied with outward ceremony, or delight in our indolence, but demands from us earnest selfdenial, that we may be entirely devoted to his service. So that he may not profane it. This clause is commonly rendered, "That he may not profane it;" and literally it runs thus, "From profaning it;" and therefore we have thought it proper to prefix the word "so" to the clause, "So that he may not profane it," in order to remove all ambiguity. And keeping his hand, that he may abstain from all that is evil. He now adds another synecdoche, to describe the duties which men owe to each other. The amount of it is, that there is no other way of serving God aright but by sincere piety and a blameless life, as he has also included in these two parts the rule of leading a holy life. In a word, it is an exposition of true righteousness which is contained in the Law of the Lord, that we may acquiesce in it; for in vain do men seek any other road to perfection. Here also are thrown down all false worship and superstitions, and, finally, everything that is contrived by men in opposition to the word of God.

Footnotes

1 - "Ausquels la grace a este faite." "To whom grace hath been given."

Blessed is the man - Hebrew, 'The blessings of the man' (see Psalm 1:1). The sense is, 'happy is the man.' The word here rendered 'man' (אנושׁ 'ĕnôsh) usually denotes a man in humble life or in a subordinate rank, in contradistinction from אישׁ 'ı̂ysh, a man in elevated rank. As the object of the prophet here is particularly to say, that the 'stranger' and the 'eunuch' would be admitted to these privileges, it is possible that he designedly used a word denoting one in bumble life. The particular blessing to which he refers is specified in Isaiah 56:7-8.
That doeth this - That is, this which the prophet soon specifies - keeping the Sabbath, and abstaining from evil.
And the son of man - Another form of expression denoting man.
That layeth hold on it - Hebrew, 'Binds himself fast to it;' or seizes upon it with strength. That is, he adheres firmly to the purpose, as a man seizes upon a thing with an intention not to let it go.
That keepeth the Sabbath from polluting it - Who sacredly observes the day of holy rest which God has appointed. The Sabbath was one of the special rites of the Jewish religion, and one of the most important of their institutions. Its observance entered essentially into the idea of their worship, and was designed to be the standing memorial or sign between God and the Jewish nation Exodus 31:13-17. At home, in their own nation, it kept up the constant sense of religion; abroad, when they traveled among strangers, it would serve to remind all of the special nature of their institutions, and be the public evidence that they were the worshippers of Yahweh. Hence, as this served to distinguish them from other people, it comes to be used here to signify the observance of the rites which pertained to the public worship of God; and evidently includes whatever was to be perpetual and unchanging in the public worship of the Creator. It is remarkable that the prophet does not pronounce a blessing on him who came to bloody altars with sacrifices, or him who burned incense, or him who conformed to the unique rites of the Jewish religion. These rites were to pass away, and the obligation to observe them was to cease; and in this indirect manner the sacred writer has given an intimation that there would be blessings on those who did not observe those rites, and that the period would arrive when the divine favor and mercy would descend on people in a different channel. In regard to the importance of the Sabbath, see the note at the close of Isaiah 58:1-14.
And keepeth his hand - That is, is an upright, holy, honest man. He not only worships God and keeps the Sabbath, but he is upright in the discharge of all the duties which he owes to his fellow-men. These two specifications are evidently designed to include all the influences of religion - the proper service and worship of God, and an upright and holy life. Never in fact are they separated, and the religion of the Bible was designed to secure the one as much as the other.

That keepeth the Sabbath from polluting it - Kimchi has an excellent note here. "The Sabbath is sanctified when it is distinguished in dignity; and separated from other days.
1. As to the body, in meat, drink, and clean clothing.
2. As to the soul, that it be empty of worldly occupations, and be busily employed in the words of the law and wisdom, and in meditation on the works of the Lord."
The rabbins say, "Jerusalem had never been destroyed, had not the Sabbaths been profaned in it."

Blessed [is] the man [that] doeth this, and the son of man [that] layeth hold on it; that keepeth the (c) sabbath from profaning it, and keepeth his hand from doing any evil.
(c) Under the Sabbath he comprehends the whole service of God and true religion.

Blessed is the man that doth this,.... That does justice, and keeps judgment; he hereby exercises a good conscience both towards God and men; he enjoys communion with God in his ways, worship, and ordinances, he attends unto, and has an evidence of his right to eternal happiness:
and the son of man that layeth hold on it; on the salvation of Christ, and his righteousness; which supposes a sense of the insufficiency of a man's own righteousness, a view of the excellency and suitableness of Christ's righteousness; and is expressive of a strong act of faith upon it, embracing and retaining it as a man's own:
that keepeth the sabbath from polluting it; by doing any servile work on it, and attending to all religious duties, private or public. This is put for the whole of instituted worship under the Gospel dispensation, and for any day or time in which the church of Christ meet together for religious worship:
and keepeth his hand from doing any evil; committing any sin against God, or doing injury to the persons or properties of men, including the whole of moral duty.

(Luke 12:43).
the man--Hebrew, enosh, "a man in humble life," in contradistinction to Hebrew, ish, "one of high rank." Even the humblest, as "the stranger" and "the eunuch" (Isaiah 56:4, Isaiah 56:6), are admissible to these privileges.
this . . . it--what follows: "keeping the Sabbath," &c. (Isaiah 58:13-14; Ezekiel 20:12). A proof that the Sabbath, in the spirit of its obligation, was to be binding under the Gospel (Isaiah 66:23). That gospel times are referred to is plain, from the blessing not being pronounced on the man who observed the sacrificial ritual of the Jewish law.
layeth hold--image from one grasping firmly some precious object which he is afraid of having forcibly snatched from him. The "Sabbath" here includes all the ordinances of divine worship under the new gospel law.
keepeth . . . hand . . . from . . . evil--The observance of the second table of the law; as the "Sabbath" referred to the first table. Together, they form the whole duty of man, the worship of God and a holy life.

The man - Every man not only Jews but Gentiles, as it is explained in the following verses. The sabbath - The sabbath seems to be put here, as sacrifice is elsewhere, for the whole worship of God.