Matthew Poole and continuators on Deuteronomy 18:3

3 And this shall be the priests due from the people, from them that offer a sacrifice , whether it be ox or sheep, and they shall give unto the priest the shoulder, and the two cheeks, and the maw .

To wit, a Sacrifice of Thanksgiving, or a Peace-Offering, as appears from Levit. 7. 31, 33. which is oft times called simply a Sacrifice, as Exod. 18. 12. Levit. 17. 5, 8. Numb. 15. 3 Deut. 12. 27.

Qu. How doth this agree with other Texts, in which the shoulder and the breast, and those parts onely are the Priests due, not the cheeks and maw? Answ. 1. Who shall tie Gods hands: what if he now makes an addition, and enlargeth the Priests commons? Nothing more usual than for one Scripture to supply what is lacking in another, and for a latter Law of God to add to a former. 2. The Breast may be here omitted, because it is comprehended under the Shoulder, to which it is commonly joyned, and with which it was waved before the Lord. 3. The Hebrew word here rendred Maw or Stomach, which was reckoned among dainties by the Antients▪ is not to my remembrance used elsewhere, and therefore it may have another signification, and some render it the breast▪ others take it for the uppermost part of the stomach, which lies under the breast.