Leviticus 24:18-21

18Whoever kills an animal is to make restitution for it, life for life.

19If any man inflicts a permanent injury on his neighbor, whatever he has done is to be done to him:

20fracture for fracture, eye for eye, tooth for tooth. Whatever injury he inflicted on the person, the same is to be inflicted on him.

21Whoever kills an animal is to make restitution for it, but whoever kills a person is to be put to death.