Leviticus 2:2-3

²And he shall bring it to Aaron's sons, the priests; and he shall take thereout his handful of the flour thereof, and of the oil thereof, with all the frankincense thereof; and the priest shall burn the memorial thereof on the altar, an offering by fire to Jehovah of a sweet odour.

³And the remainder of the oblation shall be Aaron's and his sons': it is most holy of Jehovah's offerings by fire.