Numbers 18:12,13
All the best of the oil, and all the best of the wine, and of the wheat, the first fruits of them which they shall offer to the LORD, them have I given you.
Torrey's Topical Textbook—AKJV

Leviticus 23:20
And the priest shall wave them with the bread of the first fruits for a wave offering before the LORD, with the two lambs: they shall be holy to the LORD for the priest.
Torrey's Topical Textbook—AKJV

Deuteronomy 18:3-5
And this shall be the priest's due from the people, from them that offer a sacrifice, whether it be ox or sheep; and they shall give to the priest the shoulder, and the two cheeks, and the maw.
Torrey's Topical Textbook—AKJV