And they thought that there would be no affliction, so they became blind and deaf; then Allah turned to them mercifully, but many of them became blind and deaf; and Allah is well seeing what they do.

And there are those of them who look at you, but can you show the way to the blind though they will not see?

He shall say: My Lord! why hast Thou raised me blind and I was a seeing one indeed?

Have they not travelled in the land so that they should have hearts with which to understand, or ears with which to hear? For surely it is not the eyes that are blind, but blind are the hearts which are in the breasts.