And the fire upon the altar shall be burning in it; it shall not be put out: and the priest shall burn wood on it every morning, and lay the burnt offering in order upon it; and he shall burn thereon the fat of the peace offerings.
Hitherto we have had the instructions which Moses was directed to give to the people concerning the sacrifices; but here begin the instructions he was to give to the priests; he must command Aaron and his sons, Lev 6:9. The priests were rulers in the house of God, but these rulers must be ruled; and those that had the command of others must themselves be commanded.
Commenting on Leviticus 6:8-13
And the fire upon the altar shall be burning in it, it shall not be put out,.... There were three fires, or piles of wood for fire continually; the first was a large one, on which the daily sacrifice was burnt; the second less, and called the pile of the incense, because they took from it fire in a censer to burn the morning and...
Lev 6:12 The fire of the altar was also to be kept burning “with it” (בּו, viz., the burnt-offering) the whole day through without going out. For this purpose the priest was to burn wood upon it (the altar-fire), and lay the burnt-offering in order upon it, and cause the fat portions of the peace-offerings to ascend in smoke, - that is to say, whenever...