Exodus 29:37

33 They must eat those things by which atonement was made for their ordination and consecration. But no outsider may eat them, because these things are sacred.

34 And if any of the meat of ordination or any bread is left until the morning, you are to burn up the remainder. It must not be eaten, because it is sacred.

35 This is what you are to do for Aaron and his sons based on all that I have commanded you, taking seven days to ordain them.

36 Sacrifice a bull as a sin offering each day for atonement. Purify the altar by making atonement for it, and anoint it to consecrate it.

37 For seven days you shall make atonement for the altar and consecrate it. Then the altar will become most holy; whatever touches the altar will be holy.

38 This is what you are to offer regularly on the altar, each day: two lambs that are a year old.

39 Offer one lamb in the morning and the other at twilight.

40 With the first lamb offer a tenth of an ephah of fine flour, mixed with a quarter hin of oil from pressed olives, and a drink offering of a quarter hin of wine.

41 And offer the second lamb at twilight with the same grain offering and drink offering as in the morning, as a pleasing aroma, an offering made by fire to the LORD.

Read all of Exodus 29