Exodus 30:6-10, 34-38

“Place the Altar in front of the curtain that hides the Chest of The Testimony, in front of the Atonement-Cover that is over The Testimony where I will meet you. Aaron will burn fragrant incense on it every morning when he polishes the lamps, and again in the evening as he prepares the lamps for lighting, so that there will always be incense burning before GOD, generation after generation. But don’t burn on this Altar any unholy incense or Whole-Burnt-Offering or Grain-Offering. And don’t pour out Drink-Offerings on it. Once a year Aaron is to purify the Altar horns. Using the blood of the Absolution-Offering of atonement, he is to make this atonement every year down through the generations. It is most holy to GOD.”

GOD spoke to Moses: “Take fragrant spices—gum resin, onycha, galbanum—and add pure frankincense. Mix the spices in equal proportions to make an aromatic incense, the art of a perfumer, salted and pure—holy. Now crush some of it into powder and place some of it before The Testimony in the Tent of Meeting where I will meet with you; it will be for you the holiest of holy places. When you make this incense, you are not to copy the mixture for your own use. It’s holy to GOD; keep it that way. Whoever copies it for personal use will be excommunicated.”