فَيَوْمَئِذٍ لَّا يَنفَعُ ٱلَّذِينَ ظَلَمُوا۟ مَعْذِرَتُهُمْ وَلَا هُمْ يُسْتَعْتَبُونَ Qur’an Ar-Rum (30:57)Fayawmaithin la yanfaAAu allatheena thalamoo maAAthiratuhum wala hum yustaAAtaboona
It will be no use for those who deliberately rejected the clearest warnings in Allah's Message to say: "Oh we did not realize this!" The excuse will be false, and it would be unreasonable to suppose that they would then be asked to seek Grace by repentance. It will then be too late.