Leviticus 2:3

2:3 The remainder of the grain offering belongs to Aaron and to his sons – it is most holy from the gifts of the Lord.

Leviticus 2:9-10

2:9 Then the priest must take up from the grain offering its memorial portion and offer it up in smoke on the altar – it is a gift of a soothing aroma to the Lord. 2:10 The remainder of the grain offering belongs to Aaron and to his sons – it is most holy from the gifts of the Lord.

Leviticus 9:17

9:17 Next he presented the grain offering, filled his hand with some of it, and offered it up in smoke on the altar in addition to the morning burnt offering.

Leviticus 14:20

14:20 and the priest is to offer the burnt offering and the grain offering on the altar. So the priest is to make atonement for him and he will be clean.