Exodus 30:10-12

Revised Standard Version Catholic Edition

¹⁰ Aaron shall make atonement upon its horns once a year; with the blood of the sin offering of atonement he shall make atonement for it once in the year throughout your generations; it is most holy to the Lord.”

The Half Shekel for the Sanctuary

¹¹ The Lord said to Moses, ¹² “When you take the census of the people of Israel, then each shall give a ransom for himself to the Lord when you number them, that there be no plague among them when you number them.