John Gill Bible Commentary

And thou shall offer peace offerings,.... Part of which belonged to God, which was burnt on the altar, and another part to the priest that offered them; and the rest to the owner that brought them, which he eat of with his friends; so it follows: and shall eat there, and rejoice before the Lord thy God: now this altar, where these sacrifices were offered, was on the very spot where the stones were on which the law was written; and may point at the gracious provision God has made for the redemption of his people from the curse of it by Christ, who became a substitute for them in their legal place and stead. The altar being of rough unhewn stones was a type of him in his human nature, who is the stone in the vision cut out of the mountain without hands; and being unpolished may denote the meanness of his outward appearance, on account of which he was rejected by the Jewish builders; and no iron tool being to be lifted up on them, may signify that nothing of man's is to be added to the sacrifice and satisfaction of Christ, and salvation by him; and this being in Ebal, where the curses were pronounced, shows that Christ, by the offering up of himself for the sins of his people, has made atonement for them, and thereby has delivered them from the curse of the law, being made a curse for them; all which is matter of joy and gladness to them.