Numbers 35:29-32

29So these things shall be for a statuteH2708 of judgmentH4941 to you throughout your generationsH1755 in all your dwellingsH4186. 30Whoever killethH5221 any personH5315, the murdererH7523 shall be put to deathH7523 by the mouthH6310 of witnessesH5707: but oneH259 witnessH5707 shall not testifyH6030 against any personH5315 to cause him to dieH4191. 31Moreover ye shall takeH3947 no satisfactionH3724 for the lifeH5315 of a murdererH7523, who is guiltyH7563 of deathH4191: but he shall be surelyH4191 put to deathH4191.1 32And ye shall takeH3947 no satisfactionH3724 for him that hath fledH5127 to the cityH5892 of his refugeH4733, that he should come againH7725 to dwellH3427 in the landH776, until the deathH4194 of the priestH3548.