Deuteronômio 4:42

42 Para que ali se acolhesse o homicida, que por erro matasse a seu proximo, a quem tivesse nenhum odio desd`ontem e ant`ontem: e se acolhesse a huma destas cidades e vivesse.

42 to which anyone who had killed a person could flee if they had unintentionally killed a neighbor without malice aforethought. They could flee into one of these cities and save their life.