Deuteronomy 18:3-5

Young's Literal Translation

³ `And this is the priest's right from the people, from those sacrificing a sacrifice, whether ox or sheep, he hath even given to the priest the leg, and the two cheeks, and the stomach;

⁴ the first of thy corn, of thy new wine, and of thine oil, and the first of the fleece of thy flock, thou dost give to him;

⁵ for on him hath Jehovah thy God fixed, out of all thy tribes, to stand to serve in the name of Jehovah, He and his sons continually.