Deuteronomy 21
3 Ref and it shall be, that the city which is nearest unto the slain man, even the elders of that city shall take a heifer of the herd, which hath not been wrought with, and which hath not drawn in the yoke;
4 Ref and the elders of that city shall bring down the heifer unto a valley with running water, which is neither plowed nor sown, and shall break the heifer's neck there in the valley.
5 Ref And the priests the sons of Levi shall come near; for them Jehovah thy God hath chosen to minister unto him, and to bless in the name of Jehovah; and according to their word shall every controversy and every stroke be.
6 Ref And all the elders of that city, who are nearest unto the slain man, shall wash their hands over the heifer whose neck was broken in the valley;
7 Ref and they shall answer and say, Our hands have not shed this blood, neither have our eyes seen it.
8 Ref Forgive, O Jehovah, thy people Israel, whom thou hast redeemed, and suffer not innocent blood `to remain' in the midst of thy people Israel. And the blood shall be forgiven them.
9 Ref So shalt thou put away the innocent blood from the midst of thee, when thou shalt do that which is right in the eyes of Jehovah.