And Aaron shall make an atonement upon its horns once in a year with the blood of the sin offering of atonements: once in the year shall he make atonement upon it throughout your generations: it is most holy unto the LORD.
And Nadab and Abihu, the sons of Aaron, took each of them his censer, and put fire in it, and put incense thereon, and offered unholy fire before the LORD, which he commanded them not.