He is wonderfully Omnipotent and marvellous are His holy powers. While, on the one hand, He allows ignorant opponents to attack His friends like dogs, on the other hand He commands the angels to serve them. In the same way, when His wrath comes upon the world and His anger surges against the wrongdoers, God watches over and protects His chosen ones. Were it not so, the entire mission of the people of God would end in disarray and no one would be able to recognise them. His powers are infinite, but they are revealed to people in proportion to their belief. Those who are blessed with certainty and love, and sever all ties for Him, and have broken free from selfish habits, it is for their sake that miracles are shown. God does what He wills, but He chooses to demonstrate His miraculous powers only to those who break from their ill habits for His sake. In this day and age there are very few people who know Him and believe in His extraordinary powers.
(Hazrat Mirza Ghulam Ahmadas, Noah’s Ark, p. 4)