Leviticus 2:3

2:3 The remainder of the grain offering belongs to Aaron and to his sons – it is most holy from the gifts of the Lord.

Leviticus 7:6

7:6 Any male among the priests may eat it. It must be eaten in a holy place. It is most holy.

Leviticus 21:22

21:22 He may eat both the most holy and the holy food of his God,