NET
12 but the fire which is on the altar must be kept burning on it. It must not be extinguished. So the priest must kindle wood on it morning by morning, and he must arrange the burnt offering on it and offer the fat of the peace offering up in smoke on it.
Darby
12 And the fire upon the altar shall be kept burning on 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.
KJV
12 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.