See Exodus 31:13. The Sabbath was a sign of a special people, commemorative of the work of creation, and hallowed to the honor of Yahweh, the covenant-God. As man honored God by keeping the Sabbath holy, so by the Sabbath, God "sanctified" Israel and marked them as a holy people. Therefore to profane the Sabbath was to abjure their Divine Governor.

I gave them my Sabbaths - The religious observance of the Sabbath was the first statute or command of God to men. This institution was a sign between God and them, to keep them in remembrance of the creation of the world, of the rest that he designed them in Canaan, and of the eternal inheritance among the saints in light. Of these things the Sabbath was a type and pledge.

Moreover, also, I gave them my sabbaths,.... The Targum is,

"the days of the sabbaths;''

or sabbath days, the seventh day sabbaths, which recurring throughout the year are many; but, besides these, there were the year of remission, for the seventh year sabbath; and the jubilee year, the great sabbath of all, once in fifty years; yea, Kimchi thinks the feasts, such as the passover, &c. are included: now these are distinguished from the statutes and judgments, or the precepts of the law, which were of a moral nature; these being ritual and ceremonial, and were peculiar to the Jews, and continued but for a while; however, they were gifts, and valuable ones, of considerable use and significance:

to be a sign between me and them; of his being their God, and they being his people; of his favour and good will to them, and of the, obligations they were under to him; of his having separated and distinguished them from all other nations of the world; these sabbaths being only given to them as a memorial of their deliverance out of Egypt, and as a pledge of their entering into the land of rest; and of the future rest to be enjoyed by Christ, and in heaven, to all eternity; for these were shadows of things to come, Colossians 2:16;

that they might know that I am the Lord that sanctify them; separate them from other nations, and, by such means and opportunities, begin and carry on the work of sanctification in them; for the sabbaths, and the services of them, were useful to such purposes; as Lord's days, and the work of them, are now.

Moreover also I gave them my sabbaths, to be a sign between me and them, that they might know that I am the LORD that sanctify them.

20:12 A sign - Of their being peculiarly my people.

12. sabbaths, . a sign between me and them-a kind of sacramental pledge of the covenant of adoption between God and His people. The Sabbath is specified as a sample of the whole law, to show that the law is not merely precepts, but privileges, of which the Sabbath is one of the highest. Not that the Sabbath was first instituted at Sinai, as if it were an exclusively Jewish ordinance (Ge 2:2, 3), but it was then more formally enacted, when, owing to the apostasy of the world from the original revelation, one people was called out (De 5:15) to be the covenant-people of God.

sanctify them-The observance of the Sabbath contemplated by God was not a mere outward rest, but a spiritual dedication of the day to the glory of God and the good of man. Otherwise it would not be, as it is made, the pledge of universal sanctification (Ex 31:13-17; Isa 58:13, 14). Virtually it is said, all sanctity will flourish or decay, according as this ordinance is observed in its full spirituality or not.

20:10-26. The history of Israel in the wilderness is referred to in the new Testament as well as in the Old, for warning. God did great things for them. He gave them the law, and revived the ancient keeping of the sabbath day. Sabbaths are privileges; they are signs of our being his people. If we do the duty of the day, we shall find, to our comfort, it is the Lord that makes us holy, that is, truly happy, here; and prepares us to be happy, that is, perfectly holy, hereafter. The Israelites rebelled, and were left to the judgments they brought upon themselves. God sometimes makes sin to be its own punishment, yet he is not the Author of sin: there needs no more to make men miserable, than to give them up to their own evil desires and passions.