Leviticus 6:13-16

¹³Fire must be kept burning on the altar continually. It must not go out.

¹⁴This is the law of the grain offering. The sons of Aaron will offer it before Yahweh before the altar.

¹⁵The priest will take up a handful of the fine flour of the grain offering and of the oil and the incense which is on the grain offering, and he will burn it on the altar to produce a sweet aroma as a representative offering.

¹⁶Aaron and his sons will eat whatever is left of the offering. It must be eaten without yeast in a holy place. They will eat it in the courtyard of the tent of meeting.