Albert Barnes Commentary Leviticus 6:9

"Command Aaron and his sons, saying, This is the law of the burnt-offering: the burnt-offering shall be on the hearth upon the altar all night unto the morning; and the fire of the altar shall be kept burning thereon." — Leviticus 6:9 (ASV)

Rather, This, the burnt-offering, shall be upon the fire on the altar all night until the morning. See Exodus 29:38-46, with the notes.