Out of the whole oblation - Rather, out of each offering. That is, one loaf or cake out of each kind of meat-offering was to be a heave-offering Leviticus 7:32 for the officiating priest. According to Jewish tradition, there were to be ten cakes of each kind of bread in every thank-offering. The other cakes were returned to the sacrificer.
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.