Leviticus 24:19 in the World English Bible
If anyone injures his neighbor, it shall be done to him as he has done:
Context
18 And he that killeth a beast shall make it good; beast for beast.
19 And if a man cause a blemish in his neighbour; as he hath done, so shall it be done to him;
20 Breach for breach, eye for eye, tooth for tooth: as he hath caused a blemish in a man, so shall it be done to him again.