“Now this is what you are to prepare on the altar every day continually: two lambs a year old.

and be ready for the third day, for on the third day the Lord will come down on Mount Sinai in the sight of all the people.

Every day you are to prepare a bull for a purification offering for atonement. You are to purge the altar by making atonement for it, and you are to anoint it to set it apart as holy.