The Women - 4:78
"Death overtakes you wherever you are, even if you are in strong fortresses. If something good befalls them, they say, "It is from Allah". And if evil befalls them, they say, "It is from you."Say, "It is all from Allah."What is happening to this people that they hardly understand any hadith (saying)!"
Related:
The Family Of Imran/3:154
"Then after that sorrow, He sent down upon you a safe sleep which calmed a group of you. Some of you were self-absorbed and self-centered, forming false ideas about Allah, as in the days of ignorance, and saying, "Do we have any authority in this matter?"Say, "All authority belongs to Allah."They were hiding in their hearts what they did not reveal to you. They say, "If we had any authority, we would not have been killed here."Say, "Even if you had been in your homes, those among you who were appointed to die would have crawled to the place where they would have fallen."Allah thus tries what is in your breasts and purifies what is in your hearts. Allah knows the most secret thoughts."
The Banishment/59:2
It is He Who brought out the disbelievers from the people of the Book for the first exile. You never expected them to come out. They thought that their fortresses would protect them from Allah. But Allah came to them from a place they did not expect and struck fear in their hearts. So they destroy their houses with their own hands and the hands of the believers. O people of vision, take an example.