Leviticus 6:16-17

LEB(i) 16 And Aaron and his sons must eat the remainder of it; they must eat it as unleavened bread in a holy place—in the tent of assembly's courtyard they must eat it. 17 It must not be baked with yeast. I have given it as their share from my offerings made by fire. It is a most holy thing,* like the sin offering and like the guilt offering.