Exodus 29:37-39

King James Version

³⁷ Seven days thou shalt make an atonement for the altar, and sanctify it; and it shall be an altar most holy: whatsoever toucheth the altar shall be holy.

³⁸ Now this is that which thou shalt offer upon the altar; two lambs of the first year day by day continually.

³⁹ The one lamb thou shalt offer in the morning; and the other lamb thou shalt offer at even: