Your lamb must be perfect, a male, one year old; you may take it from the sheep or from the goats.

I will not drive them out before you in one year, lest the land become desolate and the wild animals multiply against you.

For I will drive out the nations before you and enlarge your borders; no one will covet your land when you go up to appear before the Lord your God three times in the year.

So you must keep this ordinance at its appointed time from year to year.

Aaron is to make atonement on its horns once in the year with some of the blood of the sin offering for atonement; once in the year he is to make atonement on it throughout your generations. It is most holy to the Lord."