Exodus 29:36-38

Amplified Bible

³⁶ You shall offer a bull every day as a sin offering for atonement. You shall cleanse the altar from sin when you make atonement for it, and you shall anoint it to consecrate it [for God’s sacred purpose]. ³⁷ For seven days you shall make atonement for the altar [of burnt offering] and consecrate it; then the altar shall be most holy. Whatever touches the altar must be holy (set apart for God’s service).

³⁸ “Now this is what you shall offer on the altar: two one year old lambs shall be offered each day, continuously.