Exodus 29:39

Every day you shall offer the bull of sin offering for atonement. You shall cleanse the altar when you make atonement for it. You shall anoint it, to sanctify it.

Seven days you shall make atonement for the altar, and sanctify it; and the altar shall be most holy. Whatever touches the altar shall be holy.

“Now this is that which you shall offer on the altar: two lambs a year old day by day continually.

and with the one lamb a tenth part of an ephah of fine flour mixed with the fourth part of a hin of beaten oil, and the fourth part of a hin of wine for a drink offering.

The other lamb you shall offer at evening, and shall do to it according to the meal offering of the morning and according to its drink offering, for a pleasant aroma, an offering made by fire to the LORD.

It shall be a continual burnt offering throughout your generations at the door of the Tent of Meeting before the LORD, where I will meet with you, to speak there to you.