Their disbelief, their polytheism and their stopping of others from the way of Allah (swt) will become all too clear to them, because the deeds will be laid out on that day. Then Allah Most High says:

(  وَلَوْ رُدُّوا لَعَادُوا لِمَا نُهُوا عَنْهُ وَإِنَّهُمْ لَكَاذِبُونَ … ) (…And even if they were returned, they would return to that which they were forbidden; and indeed, they are liars): This is because, lying and denying is a perpetual characteristic of theirs.