Here is a repetition of several appointments made before, especially relating to their solemn feasts. When they had made the calf, they proclaimed a feast in honour of it; now, that they might never do so again, they are here charged with the observance of the feasts which God had instituted. Note, Men need not be drawn from their religion by the temptation of mirth, for we serve a Master that has abundantly provided for the joy of his servants: serious godliness is a continual feast, and joy in God always.

I.Once a week they must rest (Exo 34:21), even in earing time, and in harvest, the most busy times of the year. All worldly business must give way to that holy rest; harvest-work will prosper the better for the religious observance of the sabbath-day in harvest-time. Hereby we must show that we prefer our communion with God, and our duty to him, before either the business or the joy of harvest.

II.Thrice a year they must feast (Exo 34:23); they must then appear before the Lord, God, the God of Israel. In all our religious approaches to God, we must eye him as the Lord God, infinitely blessed, great, and glorious, that we may worship him with reverence and godly fear, as the God of Israel, a God in covenant with us, that we may be encouraged to trust in him, and to serve him cheerfully. We always are before God; but, in holy duties, we present ourselves before him, as servants to receive commands, as petitioners to sue for favours, and we have reason to do both with joy. But it might be suggested that, when all the males from every part of the country had gone up to worship in the place that God should choose, the country would be left exposed to the insults of their neighbours; and what would become of the poor women and children, and sick and aged, that were left at home? Trust God with them (Exo 34:24): Neither shall any man desire thy land; not only they shall not invade it, but they shall not so much as think of invading it. Note, 1. All hearts are in God's hands, and under his check; he can lay a restraint, not only upon men's actions, but upon their desires. Canaan was a desirable land, and the neighbouring nations were greedy enough; and yet God says, "They shall not desire it." Let us check all sinful desires in our own hearts against God and his glory, and then trust him to check all sinful desires in the hearts of others against us and our interest. 2. The way of duty is the way of safety. If we serve God, he will preserve us; and those that venture for him shall never lose by him. While we are employed in God's work, and are attending upon him, we are taken under special protection, as noblemen and members of parliament are privileged from arrests.

III.The three feasts are here mentioned, with their appendages. 1. The passover, and the feast of unleavened bread, in remembrance of their deliverance out of Egypt; and to this is annexed the law of the redemption of the first-born, Exo 34:18-20. This feast was instituted, Exo 12:13, and urged again, Exo 23:15. 2. The feast of weeks, that is, that of pentecost, seven weeks after the passover; and to this is annexed the law of the first-fruits. 3. The feast of in-gathering at the year's end, which was the feast of tabernacles (Exo 34:22): of these also he had spoken before, Exo 23:16. As to those laws repeated here (Exo 34:25, Exo 34:26), that against leaven relates to the passover, that of the first-fruits to the feast of pentecost, and therefore that against seething the kid in his mother's milk in all probability relates to the feast of in-gathering, at which God would not have them use that superstitious ceremony, which probably they had seen the Egyptians, or some other of the neighbouring nations, bless their harvests with.

IV.With these laws, here repeated, it is probable all that was said to him when he was before upon the mount was repeated likewise, and the model of the tabernacle shown him again, lest the ruffle and discomposure, which the golden calf had put him into should have bereaved him of the ideas he had in mind of what he had seen and heard; also in token of a complete reconciliation, and to show that not one jot or tittle of the law should pass away, but that all should be carefully preserved by the great Mediator, who came not to destroy, but to fulfil, Mat 5:17, Mat 5:18. And in the close, 1. Moses is ordered to write these words (Exo 34:27), that the people might be the better acquainted with them by a frequent perusal, and that they might be transmitted to the generations to come. We can never be enough thankful to God for the written word. 2. He is told that according to the tenour of these words God would make a covenant with Moses and Israel; not with Israel immediately, but with them in Moses a mediator. Thus the covenant of grace is made with believers through Christ, who is given for a covenant to the people, Isa 49:8. And, as here the covenant was made according to the tenour of the command, so it is still; for we are by baptism brought into covenant, that we may be taught to observe all things whatsoever Christ has commanded us, Mat 28:19, Mat 28:20.

Thou shalt not seethe a kid in his mother's milk - See this amply considered Exo 23:19 (note).

And it came to pass, when Moses came down Mount Sinai,.... Which was on the day of atonement, according to Jarchi, that is, the tenth of Tisri, or September; and so the Jewish chronologers (q) fix his descent on this day:

with the two tables of testimony in Moses's hand; the two tables he carried up, on which God had wrote the law, called "the testimony", being a testification and declaration of his will to the children of Israel:

when he came down from the mount, that Moses wist not that the skin of his face shone, while he talked with him: the Targum of Jonathan is,"Moses knew not that the splendour of the form of his face was become illustrious, which he had from the brightness of the glory of the Shechinah of the Lord, at the time he talked with him.''And this the apostle calls "the glory of his countenance", Co2 3:7 the glory of the Lord as it passed before him, when in the cleft of the rock, and that degree of it he was admitted to the sight of, while conversing with God, during his stay on the mount forty days and forty nights, left a shining glory on his countenance; which while he was with God he could not be at all sensible of, the glory of God so infinitely surpassing that; and when he came down the mount, as he could not see his own face without a glass, so though the rays of light and glory that darted from his face were so bright and strong, that they might have been observed by him, yet his mind was so intent on what he had seen and heard, that he took no notice of them. The Vulgate Latin version renders it very wrongly, "that his face was horned", which has given occasion to painters to represent him in a ridiculous manner, as having horns coming out of his forehead; though the word has the signification of an horn, and the meaning of that version, as of others, may only be, that the skin of his face "darted out rays" (r) like horns, such as the rays of the sun appear to be like to the eye, see Hab 3:4 hence Jupiter Ammon, the same with the sun, is described as having horns (s); and so Bacchus, who is supposed to be the same with Moses, is represented as having a horned face (t). Now this glory was left on the countenance of Moses, to show that he had had communion with God, and that the law he brought with him was from him; and to signify the glory of it, and to command awe and reverence, and make men afraid to break it.

(q) Seder Olam Rabba, c. 6. p. 19. (r) "radios ejacularetur", Tigurine version; "in modum cornu radiaret", Munster, Fagius, "vel rediasset", Vatablus; "splendere instar cornu", Drusius; so Karnon * in the Arabic language signifies the rays of the sun. * Golius, col. 1896. Castel. col. 3455. (s) Vid. Diodor. Sicul. l. 3. p. 201. Macrob. Saturnal. l. 1. c. 21. (t) Diodor. Sicul. l. 4. p. 212. so Orpheus calls Bacchus, Hymn. p. 126. and Horace ascribes to him, "cornu decorum", Carmin. l. 2. Ode 19.

he said, If now I have found grace in thy sight, O Lord, let my Lord, I pray thee, go among us--On this proclamation, he, in the overflowing benevolence of s heart, founded an earnest petition for the Divine Presence being continued with the people; and God was pleased to give His favorable answer to Moses' intercession by a renewal of His promise under the form of a covenant, repeating the leading points that formed the conditions of the former national compact.