19 All that open the womb are Mine, and every male firstborn among your livestock, whether ox or sheep. 20 But the firstborn of a donkey you shall redeem with a lamb. And if you will not redeem him, then you shall break his neck. All the firstborn of your sons you shall redeem. And none shall appear before Me empty-handed. 21 "Six days you shall work, but on the seventh day you shall rest; in plowing time and in harvest you shall rest. 22 And you shall observe the Feast of Weeks, of the firstfruits of wheat harvest, and the Feast of Ingathering at the year's end. 23 Three times in the year all your men shall appear before the Lord, the Lord God of Israel. 24 For I will cast out the nations before you and enlarge your borders; neither will any man covet your land when you go up to appear before the Lord your God three times in the year. 25 "You shall not offer the blood of My sacrifice with leaven, nor shall the sacrifice of the Feast of the Passover be left until morning. 26 The first of the firstfruits of your land you shall bring to the house of the Lord your God. You shall not boil a young goat in its mother's milk."

Moses and the Tables of the Law

27 Then the Lord said to Moses, "Write these words, for according to the tenor of these words I have made a covenant with you and with Israel."

28 So he was there with the Lord forty days and forty nights; he neither ate bread nor drank water. And He wrote on the tablets the words of the covenant, the Ten Commandments. 29 Now it was so, when Moses came down from Mount Sinai (and the two tablets of the Testimony were in Moses' hand when he came down from the mountain), that Moses did not know that the skin of his face shone while he talked with Him. 30 So when Aaron and all the children of Israel saw Moses, behold, the skin of his face shone, and they were afraid to come near him.

Matthew Henry's Commentary on Exodus 34:19-30

Commentary on Exodus 34:18-27

(Read Exodus 34:18-27)

Once a week they must rest, even in ploughing time, and in harvest. All worldly business must give way to that holy rest; even harvest work will prosper the better, for the religious observance of the sabbath day in harvest time. We must show that we prefer our communion with God, and our duty to him, before the business or the joy of harvest. Thrice a year they must appear before the Lord God, the God of Israel. Canaan was a desirable land, and the neighbouring nations were greedy; yet God says, They shall not desire it. Let us check all sinful desires against God and his glory, in our hearts, and then trust him to check all sinful desires in the hearts of others against us. The way of duty is the way of safety. Those who venture for him never lose by him. Three feasts are here mentioned: 1. The Passover, in remembrance of the deliverance out of Egypt. 2. The feast of weeks, or the feast of Pentecost; added to it is the law of the first-fruits. 3. The feast of in-gathering, or the feast of Tabernacles. Moses is to write these words, that the people might know them better. We can never be enough thankful to God for the written word. God would make a covenant with Israel, in Moses as a mediator. Thus the covenant of grace is made with believers through Christ.

Commentary on Exodus 34:28-35

(Read Exodus 34:28-35)

Near and spiritual communion with God improves the graces of a renewed and holy character. Serious godliness puts a lustre upon a man's countenance, such as commands esteem and affection. The vail which Moses put on, marked the obscurity of that dispensation, compared with the gospel dispensation of the New Testament. It was also an emblem of the natural vail on the hearts of men respecting spiritual things. Also the vail that was and is upon the nation of Israel, which can only be taken away by the Spirit of the Lord showing to them Christ, as the end of the law for righteousness to every one that believeth. Fear and unbelief would put the vail before us, they would hinder our free approach to the mercy-seat above. We should spread our wants, temporal and spiritual, fully before our heavenly Father; we should tell him our hinderances, struggles, trails, and temptations; we should acknowledge our offences.