Exodus 30:7-9

7“Aaron must burn sweet spices of incense there every morning. When he attends to the lamps, he is to burn it.

8Also when Aaron keeps the lamps lit at dusk he must burn it. There must be incense continually before Adonai, throughout your generations.

9You must not offer up unauthorized incense on it. Nor should any burnt offering or grain offering be there, nor should you pour any drink offering there.