Numbers 35:20-23

20And if he thrust him of hatredH8135, or hurled at him, lying in waitH6660, so that he diedH4191, 21or in enmityH342 smote him with his handH3027, so that he diedH4191; he that smote him shall surely be putH4191 to deathH4191; he is a murdererH7523: the avengerH1350 of bloodH1818 shall putH4191 the murdererH7523 to deathH4191, when he meeteth him.

22But if he thrust him suddenlyH6621 without enmityH342, or hurled upon him anything without lying in waitH6660, 23or with any stoneH68, whereby a man may dieH4191, seeingH7200 him not, and castH5307 it upon him, so that he diedH4191, and he was not his enemyH341, neither soughtH1245 his harmH7451;