Leviticus 6
4 Ref Then having taken off his linen robes and put on other clothing, he is to take it away into a clean place, outside the tent-circle.
5 Ref The fire on the altar is to be kept burning; it is never to go out; every morning the priest is to put wood on it, placing the burned offering in order on it, and there the fat of the peace-offering is to be burned.
6 Ref Let the fire be kept burning on the altar at all times; it is never to go out.
7 Ref And this is the law for the meal offering: it is to be offered to the Lord before the altar by the sons of Aaron.