Ex 30:34-38
The Incense. 34l The LORD told Moses: Take these aromatic substances: storax and onycha and galbanum, these and pure frankincense in equal parts; 35and blend them into incense. This fragrant powder, expertly prepared, is to be salted and so kept pure and sacred. 36Grind some of it into fine dust and put this before the covenant in the tent of meeting where I will meet you. This incense shall be treated as most sacred by you. 37You may not make incense of a like mixture for yourselves; you must treat it as sacred to the LORD. 38Whoever makes an incense like this for his own enjoyment of its fragrance, shall be cut off from his people.