21 Your eye shall not spare him: [you shall exact] life for life, eye for eye, tooth for tooth, hand for hand, foot for foot.
Deuteronomy 19:21 Cross References - LXX2012
Exodus 21:23-25
Leviticus 24:17-21
17 And whoever shall strike a man and he die, let him die the death.
18 And whoever shall strike a beast, and it shall die, let him render life for life.
19 And whoever shall inflict a blemish on his neighbor, as he has done to him, so shall it be done to himself in return;
20 bruise for bruise, eye for eye, tooth for tooth: as any one may inflict a blemish on a man, so shall it be rendered to him.
21 Whosoever shall strike a man, and he shall die, let him die the death.
Deuteronomy 19:13
13 Your eye shall not spare him; so shall you purge innocent blood from Israel, and it shall be well with you.