Dr. Mustafa Khattab, the Clear Quran - Surah Al-Mulk, ayah 12

Translation of Surah Al-Mulk, ayah 12 (67:12)

إِنَّ ٱلَّذِينَ يَخۡشَوۡنَ رَبَّهُم بِٱلۡغَيۡبِ لَهُم مَّغۡفِرَةٞ وَأَجۡرٞ كَبِيرٞ ١٢
Indeed, those in awe of their Lord without seeing Him1 will have forgiveness and a mighty reward.

Foot notes

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This can also mean that they are in awe of their Lord as much in private as they are in public.