Exodus 30:1-30:10
You shall make an altar for burning incense; make it of acacia wood. It shall be a cubit long and a cubit wide--it shall be square--and two cubits high, its horns of one piece with it. Overlay it with pure gold: its top, its sides round about, and its horns; and make a gold molding for it round about. And make two gold rings for it under its molding; make them on its two side walls, on opposite sides. They shall serve as holders for poles with which to carry it. Make the poles of acacia wood, and overlay them with gold.
Place it in front of the curtain that is over the Ark of the Pact--in front of the cover that is over the Pact--where I will meet with you. On it Aaron shall burn aromatic incense: he shall burn it every morning when he tends the lamps, and Aaron shall burn it at twilight when he lights the lamps--a regular incense offering before the Lord throughout the ages. You shall not offer alien incense on it, or a burnt offering or a meal offering; neither shall you pour a libation on it. Once a year Aaron shall perform purification upon its horns with blood of the sin offering of purification; purification shall be performed upon it once a year throughout the ages. It is most holy to the Lord.