Exodus 30:6-8

6And you shall put it in front of the veil that is above the ark of the testimony, in front of the mercy seat that is above the testimony, where I will meet with you.

7And Aaron shall burn fragrant incense on it. Every morning when he dresses the lamps he shall burn it,

8and when Aaron sets up the lamps at twilight, he shall burn it, a regular incense offering before the Lord throughout your generations.