Leviticus 6:2-9

²Instruct Aharon and his sons, saying: This is the law of the Burnt Offering. It is burnt offering, because burned upon the altar all night until morning, and the fire of the altar shall be burning in it.

³And the priest shall dress himself with the vestments of linen, and wear drawers of linen upon his flesh; and he shall separate the ashes which the fire hath consumed with the burnt offering upon the altar, and set them beside the altar.

⁴And he shall take off his vestments, and dress himself with other garments, and carry forth the ashes without the camp unto a clean place.

⁵But the fire upon the altar shall be burning on it, and never be extinguished; and the priest shall burn wood on it from morning to morning, and lay the burnt offering in order upon it, and burn upon it the fat of the sanctified oblations.

⁶The fire shall be ever burning on the altar, it shall not be extinguished.

⁷And this is the law of the Mincha which the sons of Aharon shall offer in the presence of the Lord before the altar.

⁸And he shall separate therefrom his handful lof the flour of the mincha and of its oil, and all the frankincense that is upon the mincha, and burn it at the altar as its memorial to be accepted with favour before the Lord.

⁹And the remainder of it may Aharon and his sons eat, unleavened shall it be eaten in the holy place, in the court of the tabernacle of ordinance shall they eat it.