False Prophecies of Mormonism Omnipotence of God

Omnipotence of God

D&C 19:3; “Retaining all power, even to the destroying of Satan and his works at the end of the world, and the last great day of judgment, which I shall pass upon the inhabitants thereof, judging every man according to his works and the deeds which he hath done.”

Isaiah 40:28; “Hast thou not known? hast thou not heard, that the everlasting God, the LORD, the Creator of the ends of the earth, fainteth not, neither is weary? there is no searching of his understanding.”

If God is omnipotent as it says in the Doctrine and Covenants then why does he need a body like we do? The human body consists of a system that filters bad things from entering it and when it receives fuel it has strength to perform daily tasks and expels things no longer needed. 

Why would God need this type of system if he’s omnipotent?