Note: three times the incense is called holy. Compare Isaiah 6 where the incense fills the house and the seraph cry “holy, holy, holy”.
A. 34 And the LORD said unto Moses, Take unto thee sweet spices, stacte, and onycha, and galbanum; these sweet spices with pure frankincense: of each shall there be a like weight: 35 And thou shalt make it a perfume, a confection after the art of the apothecary, tempered together, pure and holy:
B. 36 And thou shalt beat some of it very small, and put of it before the testimony in the tabernacle of the congregation, where I will meet with thee:it shall be unto you most (holy) holy.
A’. 37 And as for the perfume which thou shalt make, ye shall not make to yourselves according to the composition thereof: it shall be unto thee holy for the LORD. 38 Whosoever shall make like unto that, to smell thereto, shall even be cut off from his people.