Numbers 35 16
But if anyone deliberately hits someone with something made of iron and kills them, that person is a murderer and must be executed.
Compare with other 3 random translations
NCV Numbers 35:16“ ‘Anyone who uses an iron weapon to kill someone is a murderer. He must be put to death.
AMP Numbers 35:16‘But if he struck his victim down [intentionally] with an iron object so that he died, he is a murderer; the murderer shall certainly be put to death.
WEB Numbers 35:16“‘But if he struck him with an instrument of iron, so that he died, he is a murderer. The murderer shall surely be put to death.