Numbers 18:27-29

Revised Standard Version

²⁷ And your offering shall be reckoned to you as though it were the grain of the threshing floor, and as the fulness of the wine press. ²⁸ So shall you also present an offering to the Lord from all your tithes, which you receive from the people of Israel; and from it you shall give the Lord’s offering to Aaron the priest. ²⁹ Out of all the gifts to you, you shall present every offering due to the Lord, from all the best of them, giving the hallowed part from them.’