Leviticus 24:17-20

He also that killeth any man, he shall be put to death.

And he that killeth a beast, he shall restore it, beast for beast.

Also if a man cause any blemish in his neighbour: as he hath done, so shall it be done to him.

Breache for breach, eye for eye, tooth for tooth: such a blemish as he hath made in any, such shalbe repayed to him.