Exodus 29:26-27 ▼

26 “Then you shall take the breast of Aaron’s ram of ordination and wave it as a wave offering before Yahweh; and it shall be your portion.

27 You shall set apart as holy the breast of the wave offering and the thigh of the contribution offering which was waved and which was raised up as a contribution from the ram of ordination, from the one which was for Aaron and from the one which was for his sons.