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.

The blood of my sacrifice - That is, the paschal lamb. See Clarke on Exo 23:18 (note).

And he was there with the Lord forty days and forty nights,.... These were other forty days and nights, besides those he had been with the Lord, when he came down and broke the two tables in his hand, on sight of the idolatry of the people; yea, not only the Jewish writers think that he was on the mount three times forty days and forty nights, but also several learned Christian writers, as Dr. Lightfoot (p) and others; and it seems plain that he went up to the mountain three times, Exo 24:15 and it is not improbable that he was each time so long there; about the first and third times there can be no doubt, see Exo 24:18 and the text before us; and at the second time, when he went up to make reconciliation for the people, Exo 32:30 he says, that he fell down before the Lord, as at the first forty days and forty nights, Deu 9:18 and from the seventh day of the month Sivan, the day after the giving of the law, to the tenth of Tisri, on which day he now descended, are just so many days:

he did neither eat bread nor drink water: and it is very likely slept not, he being supported without either of these by the power of God; and having such nearness of communion with God, and his mind taken up with what he heard and saw, he had no thoughts of, nor desires and cravings after such things, as well as he stood in no need of them; all which must be ascribed to the miraculous interposition of God in the support of him; see Gill on Exo 24:18.

and he wrote on the tables the words of the covenant, the ten commandments; not Moses, for these were tables of stone, which he could not write or engrave upon without proper instruments, which it does not appear he had with him on the mount; but it was God that wrote them, who, in Exo 34:1 says he would write them, and from Deu 10:2 we are assured he did.

(p) Works, vol. 1. p. 715, 716.

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.