Exodus 21:13 in the King James Version
And if a man lie not in wait, but God deliver him into his hand; then I will appoint thee a place whither he shall flee.
Context
12 “One who strikes a man so that he dies shall surely be put to death,
13 but not if it is unintentional, but God allows it to happen; then I will appoint you a place where he shall flee.
14 If a man schemes and comes presumptuously on his neighbor to kill him, you shall take him from my altar, that he may die.