Numbers 35:20-22

New International Version - UK

²⁰ If anyone with malice aforethought pushes another or throws something at them intentionally so that they die ²¹ or if out of enmity one person hits another with their fist so that the other dies, that person is to be put to death; that person is a murderer. The avenger of blood shall put the murderer to death when they meet.

²² ‘“But if without enmity someone suddenly pushes another or throws something at them unintentionally