Numbers 35:22

18 If anyone has in his hand a deadly object of wood, and he strikes and kills another, he is a murderer; the murderer must surely be put to death.

19 The avenger of blood is to put the murderer to death; when he finds him, he is to kill him.

20 Likewise, if anyone maliciously pushes another or intentionally throws an object at him and kills him,

21 or if in hostility he strikes him with his hand and he dies, the one who struck him must surely be put to death; he is a murderer. When the avenger of blood finds the murderer, he is to kill him.

22 But if anyone pushes a person suddenly, without hostility, or throws an object at him unintentionally,

23 or without looking drops a heavy stone that kills him, but he was not an enemy and did not intend to harm him,

24 then the congregation must judge between the slayer and the avenger of blood according to these ordinances.

25 The assembly is to protect the manslayer from the hand of the avenger of blood. Then the assembly will return him to the city of refuge to which he fled, and he must live there until the death of the high priest, who was anointed with the holy oil.

26 But if the manslayer ever goes outside the limits of the city of refuge to which he fled

Read all of Numbers 35