The atheists' argument for the existence of calamities to deny the existence of Allah

Question:
Honorable Shaykh, may Allah grant you success. A questioner from Europe says: Some of the disbelievers among us argue that the existence of calamities proves the non-existence of Allah. They say, "If there were a God, these calamities would not have happened." How should I respond to these people? What? He says: Some of the disbelievers argue that the existence of calamities proves the non-existence of Allah. They say, "If there were a God, these calamities would not have happened." How should I respond to these people?

Answer:
You respond to them by saying: . He created good and He created evil; He created the believer and He created the disbeliever, so that His wisdom (Glorified and Exalted is He), His pardon, His forgiveness, and His mercy may become manifest. Also, His anger, His punishment, and His retribution become manifest. Were it not for these matters, were it not for the existence of these matters, these names and attributes would not have come about, meaning the effects of the names and attributes in this universe.