Exodus 29:27

And thou shalt sanctify the breast of the wave-offering, and the shoulder of the heave-offering, the former being merely moved back and forth in the gesture of giving, while the latter was also lifted up high to indicate the willing surrender to Jehovah, which is waved, and which is heaved up, of the ram of the consecration, even of that which is for Aaron, and of that which is for his sons; for it seems that all the rest of the body went with the thigh, as the priests' part.