Exodus 30:34-36

34Then 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—

35and make incense with it, a perfume, the work of a perfumer, salted, pure and sacred.

36You 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.