Surah 15. Al-Hijr, Ayah 12

If evil and disbelief exist in the world, we must not be impatient or lose our faith. We must recognise that if such things are permitted, they are part of the Universal Plan and purpose of Allah, Who is All-Wise and All-Good, but Whose wisdom and goodness we cannot fully fathom. One consolation we have, and that is stated in the next verse and the next note.