Numbers 35:16

16 "But if he struck him down with an instrument of iron, so that he died, he is a murderer; the murderer shall be put to death.

Numbers 35:16 In-Context

14 You shall give three cities beyond the Jordan, and three cities in the land of Canaan, to be cities of refuge.
15 These six cities shall be for refuge for the people of Israel, and for the stranger and for the sojourner among them, that any one who kills any person without intent may flee there.
16 "But if he struck him down with an instrument of iron, so that he died, he is a murderer; the murderer shall be put to death.
17 And if he struck him down with a stone in the hand, by which a man may die, and he died, he is a murderer; the murderer shall be put to death.
18 Or if he struck him down with a weapon of wood in the hand, by which a man may die, and he died, he is a murderer; the murderer shall be put to death.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.