Exodus 30:34-38

Then the LORD said to Moses, “Take sweet and fragrant spices—stacte, onycha, and galbanum, sweet and fragrant spices with pure frankincense; there shall be an equal amount of each— and make incense with it, a perfume, the work of a perfumer, salted, pure and sacred. You shall crush some of it [into a] very fine [powder], and put some of it before the Testimony in the Tent of Meeting, where I will meet with you; it shall be most holy to you. The incense which you shall make, you shall not make in the same proportions for yourselves; it shall be holy to you for the LORD. Whoever makes any like it, to use as perfume shall be cut off from his people [excluding him from the atonement made for them].”