Exodus 29:35-37

Amplified Bible, Classic Edition

³⁵ Thus shall you do to Aaron and to his sons according to all I have commanded you; during seven days shall you ordain them.

³⁶ You shall offer every day a bull as a sin offering for atonement. And you shall cleanse the altar by making atonement for it, and anoint it to consecrate it.

³⁷ Seven days you shall make atonement for the altar and sanctify it [set it apart for God]; and the altar shall be most holy; whoever or whatever touches the altar must be holy (set apart for God’s service).