Exodus 30:26 (KJV)

So they shall wash their hands and their feet, that they die not: and it shall be a statute for ever to them, even to him and to his seed throughout their generations.

Moreover the LORD spake unto Moses, saying,

Take thou also unto thee principal spices, of pure myrrh five hundred shekels, and of sweet cinnamon half so much, even two hundred and fifty shekels, and of sweet calamus two hundred and fifty shekels,

And of cassia five hundred shekels, after the shekel of the sanctuary, and of oil olive an hin:

And thou shalt make it an oil of holy ointment, an ointment compound after the art of the apothecary: it shall be an holy anointing oil.

And the table and all his vessels, and the candlestick and his vessels, and the altar of incense,

And the altar of burnt offering with all his vessels, and the laver and his foot.

And thou shalt sanctify them, that they may be most holy: whatsoever toucheth them shall be holy.

And thou shalt anoint Aaron and his sons, and consecrate them, that they may minister unto me in the priest's office.

And thou shalt speak unto the children of Israel, saying, This shall be an holy anointing oil unto me throughout your generations.