'Power' in the Bible

but Jehovah who brought you up out of the land of Egypt with great power, and with a stretched-out arm, Him ye do fear, and to Him ye bow yourselves, and to Him ye do sacrifice;

and they say unto him, 'Thus said Hezekiah -- A day of distress, and rebuke, and despising is this day; for come have sons unto the birth, and power there is not to bring forth.