Exodus 30:30-33

30And you shall anoint Aaron and his sons, and consecrate them, that they may minister to Me as priests.

31“And you shall speak to the children of Israel, saying: ‘This shall be a holy anointing oil to Me throughout your generations.

32It shall not be poured on man’s flesh; nor shall you make any other like it, according to its composition. It is holy, and it shall be holy to you.

33Whoever compounds any like it, or whoever puts any of it on an outsider, shall be cut off from his people.’ ”