Exodus 30:34-38

And Jehovah said unto Moses, Take unto thee sweet spices, stacte, and onycha, and galbanum; sweet spices with pure frankincense: of each shall there be a like weight; and thou shalt make of it incense, a perfume after the art of the perfumer, seasoned with salt, pure and holy: and thou shalt beat some of it very small, and put of it before the testimony in the tent of meeting, where I will meet with thee: it shall be unto you most holy. And the incense which thou shalt make, according to the composition thereof ye shall not make for yourselves: it shall be unto thee holy for Jehovah. Whosoever shall make like unto that, to smell thereof, he shall be cut off from his people.