Aaron must make atonement on its horns once a year with the blood of the sin offering of atonement. Once a year he must make atonement on it throughout your generations. It is most holy to the Lord.
Now Nadab and Abihu, the sons of Aaron, each took his censer and put fire in it, and put incense on it, and offered strange fire before the Lord, which He did not command them to do.