Leviticus 6:13-17

¹³The fire must always be kept burning on the altar continually—don't let it go out.

¹⁴These are the regulations for the grain offering: Aaron's sons are to present it before the Lord, in front of the altar.

¹⁵The priest shall remove a handful of the best flour mixed with olive oil, as well as all the frankincense from the grain offering, and burn the ‘reminder part’ on the altar to be to be accepted by the Lord.

¹⁶The rest is for Aaron and his sons to eat. It must be eaten without yeast in a holy place—the courtyard of the Tent of Meeting.

¹⁷It must not be baked with yeast. I have provided it as their share of my food offerings. It is most holy, just like the sin offering and the guilt offering.