Leviticus 2:8-10

8When you bring in the grain offering which is made of these things to the Lord, it shall be presented to the priest and he shall bring it to the altar. 9The priest then shall take up from the grain offering 1its memorial portion, and shall offer it up in smoke on the altar as an offering by fire of a soothing aroma to the Lord. 102The remainder of the grain offering belongs to Aaron and his sons: a thing most holy of the offerings to the Lord by fire.