Exodus 29:36

33 and they have eaten those things by which there is atonement to consecrate their hand, to sanctify them; and a stranger doth not eat -- for they [are] holy;

34 and if there be left of the flesh of the consecration or of the bread till the morning, then thou hast burned that which is left with fire; it is not eaten, for it [is] holy.

35 `And thou hast done thus to Aaron and to his sons, according to all that I have commanded thee; seven days thou dost consecrate their hand;

36 and a bullock, a sin-offering, thou dost prepare daily for the atonements, and thou hast atoned for the altar, in thy making atonement on it, and hast anointed it to sanctify it;

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;