Deuteronomy 21:3-5

New Catholic Bible

³ The elders of the town that is nearest to the body are to take a heifer that has never worked nor worn a yoke. ⁴ The elders of that town will then lead it down to a valley with a flowing stream that has not been plowed nor planted. In that valley they are to slit the heifer’s throat. ⁵ The priests, the sons of Levi, will then come forward, for the Lord, your God, has chosen them to minister to him and to pronounce blessings in the name of the Lord and to decide all disputes and cases of assault.