This is the portion of the food offerings to the LORD for Aaron and his sons since the day they were presented to serve the LORD as priests.
KJV
This [is the portion] of the anointing of Aaron, and of the anointing of his sons, out of the offerings of the LORD made by fire, in the day [when] he presented them to minister unto the LORD in the priest’s office;
ASV
This is the anointing-portion of Aaron, and the anointing-portion of his sons, out of the offerings of Jehovah made by fire, in the day when he presented them to minister unto Jehovah in the priest’s office;