Exodus 29:36 DBY

³⁴  And if [any] of the flesh of the consecration, and of the bread, remain until the morning, then thou shalt burn the remainder with fire: it shall not be eaten, for it is holy.

³⁵  And thus shalt thou do to Aaron, and to his sons, according to all that I have commanded thee: seven days shalt thou consecrate them.

³⁶  And thou shalt offer every day a bullock as a sin-offering for atonement; and the altar shalt thou cleanse from sin, by making atonement for it, and shalt anoint it, to hallow it.

³⁷  Seven days shalt thou make atonement for the altar and hallow it; and the altar shall be most holy: whatever toucheth the altar shall be holy.

³⁸  And this is what thou shalt offer upon the altar -- two lambs of the first year, day by day continually.