Exodus 30:8-10

Lexham English Bible

⁸ And when Aaron sets up the lamps at twilight,^[a] he will turn it into smoke—incense of continuity—before Yahweh throughout your generations. ⁹ You will not offer on it strange incense or a burnt offering or a grain offering, and you will not pour a libation on it. ¹⁰ And Aaron will make atonement on its horns one time in the year from the blood of the sin offering of the atonement; one time in the year he will make atonement on it throughout your generations; it is a most holy thing for Yahweh.”