هَلْ يَنظُرُونَ إِلَّآ أَن تَأْتِيَهُمُ ٱلْمَلَـٰٓئِكَةُ أَوْ يَأْتِىَ أَمْرُ رَبِّكَ ۚ كَذَٰلِكَ فَعَلَ ٱلَّذِينَ مِن قَبْلِهِمْ ۚ وَمَا ظَلَمَهُمُ ٱللَّهُ وَلَـٰكِن كَانُوٓا۟ أَنفُسَهُمْ يَظْلِمُونَ Qur’an An-Nahl (16:33)Hal yan th uroona ill a an tatiyahumu almal a ikatu aw yatiya amru rabbika ka tha lika faAAala alla th eena min qablihim wam a th alamahumu All a hu wal a kin k a noo anfusahum ya th limoon a
Lit., "for the angels to come to them, or for God's judgment (amr) to come" - i.e., for the Day of Resurrection. The full meaning of this passage is forthcoming from 6:158 , revealed at the same period as the present surah.
That is, until death comes to them, or some Punishment in this life, itself, which precludes them from repentance, and the Mercy of Allah.