Exodus 21:22-23

22When two men fight together, perhaps one of them may hit a pregnant woman. As a result of the fight, she may give birth to her child before the right time. If the man has not hurt the woman very much, he must pay money to her husband. He must pay the amount of money that the husband demands. A judge must agree that the money for his punishment is fair.

23But if the man has hurt the woman a lot, you must punish him as he deserves. Take a life for a life,