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 savor, even the memorial of it, to the LORD.

¹⁶And the remainder of it 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.