Al-A'raf · 7:95

95. After trying them with suffering and illness Allah improved their situation and turned their suffering into well-being and safety, until they became many and their wealth increased, and they said that the bad and good that they had experienced was a normal part of life and that the same thing had happened to their ancestors before them. They did not recognise that there was a lesson to be learned in the difficulties that occurred to them and that there was a test for them in the good that they were given. Then Allah overtook them suddenly with the punishment, while they were unaware of it and did not expect it.