Certainty in Allah's Justice

قُلْ يَـٰقَوْمِ ٱعْمَلُوا۟ عَلَىٰ مَكَانَتِكُمْ إِنِّى عَامِلٌ ۖ فَسَوْفَ تَعْلَمُونَ مَن تَكُونُ لَهُۥ عَـٰقِبَةُ ٱلدَّارِ ۗ إِنَّهُۥ لَا يُفْلِحُ ٱلظَّـٰلِمُونَ

Say, "O my people, work according to your position; [for] indeed, I am working. And you are going to know who will have succession in the home. Indeed, the wrongdoers will not succeed."