Translation:

75. "That was because ye were wont to rejoice on the earth in things other than the Truth and that ye were wont to be insolent.

Notes (Tafseer)

4451. Allah does not withdraw His grace from any unless (1) they actively and deliberately take a delight in things that are vain or false, and (2) they insolently reject the things that are truer-in other words, unless men are deliberately false to their own lights, as illuminated by the Light of Allah.