Exodus 29:23-30

23and one cake of bread and 1one cake of bread mixed with oil and one wafer from the basket of unleavened bread which is set before the Lord; 24and you shall put 2all these 3in the 4hands of Aaron and 5in the 6hands of his sons, and shall wave them as a wave offering before the Lord. 257You shall take them from their hands, and offer them up in smoke on the altar on the burnt offering for a soothing aroma before the Lord; it is an offering by fire to the Lord.

26“Then you shall take 8the breast of Aaron’s ram of 9ordination, and wave it as a wave offering before the Lord; and it shall be your portion. 27You shall consecrate the breast of the wave offering and the thigh of the heave offering which was waved and which was 10offered from the ram of 11ordination, from the one which was for Aaron and from the one which was for his sons. 28It shall be for Aaron and his sons as their portion forever from the sons of Israel, for it is a heave offering; and it shall be a heave offering from the sons of Israel from the sacrifices of their peace offerings, even their heave offering to the Lord.

29“12The holy garments of Aaron shall be for his sons after him, 13that in them they may be anointed and ordained. 30For seven days the one of his sons who is priest in his stead shall put them on when he enters the tent of meeting to minister in the holy place.