Behold, I have created the smith that bloweth the coals in the fire, and that bringeth forth an instrument for his work; and I have created the waster to destroy. No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD.
The God who created the munitions-maker and the conqueror is well able to control His creatures. Jehovah has decreed that no weapon formed against Israel would succeed, and that Israel herself shall condemn every accuser. This freedom from condemnation and certain victory are the heritage of the servants of the LORD. This is how God will vindicate them in the golden era of peace and prosperity.