Genesis 9:5,6
And surely your blood of your lives will I require; at the hand of every beast will I require it, and at the hand of man; at the hand of every man's brother will I require the life of man.
Nave's Topical Index—AKJV

Numbers 35:19-29
The revenger of blood himself shall slay the murderer: when he meets him, he shall slay him.
Nave's Topical Index—AKJV

Deuteronomy 19:4-13
And this is the case of the slayer, which shall flee thither, that he may live: Whoever kills his neighbor ignorantly, whom he hated not in time past;
Nave's Topical Index—AKJV

Joshua 20:1-9
The LORD also spoke to Joshua, saying,
Nave's Topical Index—AKJV