This shall be the law of the killer who flees, whose life is to be saved. Whoever strikes down his neighbor unwillingly, and who has been proven to have had no hatred against him yesterday and the day before
Other versions
King James Version
And this is the case of the slayer, which shall flee thither, that he may live: Whoso killeth his neighbour ignorantly, whom he hated not in time past; English Standard Version
"This is the provision for the manslayer, who by fleeing there may save his life. If anyone kills his neighbor unintentionally without having hated him in the past--New International Version
This is the rule concerning the man who kills another and flees there to save his life-one who kills his neighbor unintentionally, without malice aforethought.