Surah Qaf 50:33

مَّنْ خَشِىَ ٱلرَّحْمَـٰنَ بِٱلْغَيْبِ وَجَآءَ بِقَلْبٍ مُّنِيبٍ

Who feared the Most Merciful in the unseen and came with a heart returning [in repentance].

Translation: Saheeh International

Tafsir

who fears the Compassionate One while He is in the Unseen the one who fears Him without having seen Him and comes with a penitent heart’ a heart eagerly applying itself to obedience of Him.

Excerpt from Tafsir al-Jalalayn, commentary on 50:33, via Quran.com. The reader has the full commentary and 9 more tafsirs.