Exodus 30:6-9

Put the altar of incense in front of the curtain that is near the Ark of the Agreement, in front of the lid that covers that Ark. There I will meet with you. “Aaron must burn sweet-smelling incense on the altar every morning when he comes to take care of the oil lamps. He must burn incense again in the evening when he lights the lamps, so incense will burn before the LORD every day from now on. Do not use this altar for offering any other incense, or burnt offering, or any kind of grain offering, or drink offering.