Of it — That is, of the offering, one of each part of the whole: it being most agreeable to the rules laid down before and afterward, that the priest should have a share in the unleavened cakes and wafers, as well as in the leavened bread.
Related Commentaries of Leviticus 7:14
Leviticus 7:14
14 And of it he shall offer one out of the whole oblation for an heave offering unto the LORD, and it shall be the priest's that sprinkleth the blood of the peace offerings.