Exodus 21:12-14

12 He that smites a man, so that he die, shall be surely put to death.

13 And if a man lie not in wait, but God deliver him into his hand; then I will appoint you a place where he shall flee.

14 But if a man come presumptuously on his neighbor, to slay him with guile; you shall take him from my altar, that he may die.