Surah Al-Mulk 67:12

إِنَّ ٱلَّذِينَ يَخْشَوْنَ رَبَّهُم بِٱلْغَيْبِ لَهُم مَّغْفِرَةٌ وَأَجْرٌ كَبِيرٌ

Indeed, those who fear their Lord unseen will have forgiveness and great reward.

Translation: Saheeh International

Tafsir

Assuredly those who fear their Lord in secret while they are absent from people’s eyes being obedient to Him in secret such that openly before people it is all the more likely that they fear their Lord — there will be for them forgiveness and a great reward namely Paradise.

Excerpt from Tafsir al-Jalalayn, commentary on 67:12, via Quran.com. The reader has the full commentary and 9 more tafsirs.