Tafseer Ibn Kathir of AN NUUR [25]

يَوْمَئِذٍ يُوَفِّيهِمُ اللَّهُ دِينَهُمُ الْحَقَّ وَيَعْلَمُونَ أَنَّ اللَّهَ هُوَ الْحَقُّ الْمُبِينُ

That Day, Allah will pay them in full their deserved recompense, and they will know that it is Allah who is the perfect in justice.