'Weapon' in the Bible

"Behold, I have created the smith who blows the fire of coals, and brings forth a weapon for his work; and I have created the waster to destroy.

No weapon that is formed against you will prevail; and you will condemn every tongue that rises against you in judgment. This is the heritage of the servants of Yahweh, and their righteousness which is of me," says Yahweh.