Exodus 29:37-39

Young's Literal Translation

³⁷ seven days thou dost make atonement for the altar, and hast sanctified it, and the altar hath been most holy; all that is coming against the altar is holy.

³⁸ `And this [is] that which thou dost prepare on the altar; two lambs, sons of a year, daily continually;

³⁹ the one lamb thou dost prepare in the morning, and the second lamb thou dost prepare between the evenings;