Leviticus 2:1-2

¹And if a soul bring a gift, a sacrifice to the Lord, his gift shall be fine flour; and he shall pour oil upon it, and shall put frankincense on it: it is a sacrifice.

²And he shall bring it to the priests the sons of Aaron: and having taken from it a handful of the fine flour with the oil, and all its frankincense, then the priest shall put the memorial of it on the altar: it is a sacrifice, an odor of sweet savor to the Lord.