Leviticus 6:17

6:17 It must not be baked with yeast. I have given it as their portion from my gifts. It is most holy, like the sin offering and the guilt offering.

Leviticus 10:13

10:13 You must eat it in a holy place because it is your allotted portion and the allotted portion of your sons from the gifts of the Lord, for this is what I have been commanded.