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.
Evil manners, we say, beget good laws. We have here an account of the evil manners of a certain nameless mongrel Israelite, and the good laws occasioned thereby. I. The offender was the son of an Egyptian father and an Israelitish mother (Lev 24:10); his mother was of the tribe of Dan, Lev 24:11. Neither he nor his father is named, but his mother only, who was an Israelite.
Commenting on Leviticus 24:10-23
And he that killeth a beast, he shall restore it,.... The same as in Lev 24:18, which is repeated for the confirmation of it, and that it might be observed, though Jarchi takes it to be a different law; before, he says, it speaks of him that kills a beast, here of him that makes any wound or bruise in it, which he must make...
Breach for breach - This is a repetition of the lex talionis, which See explained Exo 21:24 (note).