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1"When any one brings a cereal offering as an offering to the LORD, his offering shall be of fine flour; he shall pour oil upon it, and put frankincense on it, 2and bring it to Aaron's sons the priests. And he shall take from it a handful of the fine flour and oil, with all of its frankincense; and the priest shall burn this as its memorial portion upon the altar, an offering by fire, a pleasing odor to the LORD. 3And what is left of the cereal offering shall be for Aaron and his sons; it is a most holy part of the offerings by fire to the LORD.
Leviticus 2:1-3 (RSV)