Leviticus 6:5-13

⁵And the fire on the altar shall be kept burning on it, and shall not be extinguished; and the priest shall burn on it wood every morning, and shall heap on it the whole-burnt-offering, and shall lay on it the fat of the peace-offering.

⁶And the fire shall always burn on the altar; it shall not be extinguished.

⁷This is the law of the sacrifice, which the sons of Aaron shall bring near before the Lord, before the altar.

⁸And he shall take from it a handful of the fine flour of the sacrifice with its oil, and with all its frankincense, which are upon the sacrifice; and he shall offer up on the altar a burnt-offering as a sweet-smelling savour, a memorial of it to the Lord.

⁹And Aaron and his sons shall eat that which is left of it: it shall be eaten without leaven in a holy place, they shall eat it in the court of the tabernacle of witness.

¹⁰It shall not be baked with leaven. I have given it as a portion to them of the burnt-offerings of the Lord: it is most holy, as the offering for sin, and as the offering for trespass.

¹¹Every male of the priests shall eat it: it is a perpetual ordinance throughout your generations of the burnt-offerings of the Lord; whosoever shall touch them shall be hallowed.

¹²And the Lord spoke to Moses, saying,

¹³This is the gift of Aaron and of his sons, which they shall offer to the Lord in the day in which thou shalt anoint him; the tenth of an ephah of fine flour for a sacrifice continually, the half of it in the morning, and the half of it in the evening.