17لِنَفتِنَهُم فيهِ ۚ وَمَن يُعرِض عَن ذِكرِ رَبِّهِ يَسلُكهُ عَذابًا صَعَدًاMuhammad Asadso as to test them by this means: for he who shall turn away from the remembrance of his Sustainer, him will He cause to undergo suffering most grievous.1I.e., God's bestowal of blessings is not just a "reward" of righteousness but, rather, a test of man's remaining conscious of, and therefore grateful to, Him.