Leviticus 6:13-16

¹³The fire shall ever be burning upon the altar; it shall never go out.

¹⁴And this is the law of the meat offering: the sons of Aaron shall offer it before the LORD, before the altar.

¹⁵And he shall take of it his handful, of the flour of the meat offering, and of the oil thereof, and all the frankincense which is upon the meat offering, and shall burn it upon the altar for a sweet savour, even the memorial of it, unto the LORD.

¹⁶And the remainder thereof shall Aaron and his sons eat: with unleavened bread shall it be eaten in the holy place; in the court of the tabernacle of the congregation they shall eat it.