Leviticus 7:35

This is the unction of Aaron and the unction of his sons, the reward assigned them from the homage offerings of the Lord, on the day he took them into his house to minister to the Lord in the priest’s office;

This is the anointing of Aaron, and the anointing of his sons, their portion of the burnt-offerings of the Lord, in the day in which he brought them forward to minister as priests to the Lord;