Numbers 35:21-23

Good News Translation

²¹ or by striking him with your fist, you are guilty of murder and are to be put to death. The dead person's nearest relative has the responsibility for putting the murderer to death. When he finds you, he is to kill you.

²² “But suppose you accidentally kill someone you do not hate, whether by pushing him down or by throwing something at him. ²³ Or suppose that, without looking, you throw a stone that kills someone whom you did not intend to hurt and who was not your enemy.