Exodus 21:13

If it appear that the manslayer did not intend nor desire it, but only it fell out by his heedlessness, or by some casualty, or by some unexpected providence; or, God, and not man, God without the man's contrivance or design; for otherwise, in a general sense and way, God delivered Christ into the hands of Judas and the Jews, who did advisedly and maliciously kill him. A place whither he shall flee, i.e. a city or place of refuge, Numbers 35:11 Deuteronomy 19:5.