Thrice in the year shall all your men children appear before the Lord God,.... At the three above mentioned feasts; see Gill on Exodus 23:17 here it is added:

the God of Israel; who had chosen them to be his special people, had redeemed them out of Egypt, and done great things for them since; had made a covenant with them, and had now renewed that covenant with them, and was their covenant God, and they his people, and so were under great obligations to present themselves unto him at the times appointed by him.

Thrice in the year shall all your men children appear before the LORD God, the God of Israel.

34:23 Thrice in the year shall all the men - children appear - But it might be suggested, when all the males slain every part were gone up to worship in the place that God should chuse, the country would he left exposed to the insults of their neighbours; and what would become of the poor women and children? Trust God with them.

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.