Leviticus

And Moses said unto Aaron, and unto Eleazar and unto Ithamar, his sons, Uncover not your heads, neither rend your clothes; lest ye die, and lest wrath come upon all the people: but let your brethren, the whole house of Israel, bewail the burning which the Lord hath kindled.

And ye shall not go out from the door of the tabernacle of the congregation, lest ye die: for the anointing oil of the Lord is upon you. And they did according to the word of Moses.

And the priest, whom he shall anoint, and whom he shall consecrate to minister in the priest’s office in his father’s stead, shall make the atonement, and shall put on the linen clothes, even the holy garments:

Then shalt thou take the anointing oil, and pour it upon his head, and anoint him.