The phrase "omnipotent power" means having unlimited and all-encompassing abilities or control. It refers to a supreme or ultimate level of power that can do anything and everything. Full definition
A sight of the awesome greatness of God may overpower our strength and be more than we can endure; but if the moral beauty of God be hid, the enmity of the heart will remain in its full strength, no love can be enkindled, [our will] will not be effectual... but will remain inflexible; whereas the first glimpse of the moral and spiritual glory of God shining into the heart produces all these affects, as it were with omnipotent power, which nothing can withstand. (religion-online.org)
To assume your so called god is the omnipotent being yet is impotent at the same time would be laughable, except that with that excuse many take action with the belief that it is impotent and needs them to deal out its omnipotent power. (religion.blogs.cnn.com)
Better if your conditions hinge upon proof of God rather than proof that God's omnipotent powers aren't so omnipotent after all! (religion.blogs.cnn.com)