Numbers 35:21

21 or out of enmity smites him with his hand so that he dies, he that smote him shall surely be put to death; for he is a murderer; the kinsman avenger {Heb. redeemer} of blood shall slay the murderer when he meets him.

Numbers 35:21 In-Context

19 The kinsman avenger {Heb. redeemer} of blood shall slay the murderer; when he meets him, he shall slay him.
20 But if he thrusts him out of hatred or hurls at him by laying in wait, so that he dies
21 or out of enmity smites him with his hand so that he dies, he that smote him shall surely be put to death; for he is a murderer; the kinsman avenger {Heb. redeemer} of blood shall slay the murderer when he meets him.
22 But if he thrusts him suddenly without enmity, or has cast upon him any thing without laying in wait,
23 or with any stone, with which a man may die, seeing him not and casts it upon him that he dies, and was not his enemy, neither sought his harm,
The Jubilee Bible (from the Scriptures of the Reformation), edited by Russell M. Stendal, Copyright © 2000, 2001, 2010