Deuteronomy 21:4-6

21st Century King James Version

⁴ and the elders of that city shall bring down the heifer unto a rough valley, which is neither eared nor sown, and shall strike off the heifer’s neck there in the valley.

⁵ And the priests, the sons of Levi, shall come near, for them the Lord thy God hath chosen to minister unto Him and to bless in the name of the Lord; and by their word shall every controversy and every stroke be tried.

⁶ And all the elders of that city who are next unto the slain man shall wash their hands over the heifer that is beheaded in the valley.