Exodus 29:21, 29

Then you shall take some of the blood that is on the altar and some of the anointing oil, and sprinkle it on Aaron and his garments and on his sons and their garments. Now Aaron and his garments and his sons and their garments shall be consecrated (dedicated, made holy, declared sacred for God’s purpose).

“The holy garments of Aaron shall be for his sons after him, to be anointed and ordained in them.