﴿ وَٱلَّذِينَ كَفَرُوا۟ لَهُمْ نَارُ جَهَنَّمَ لَا يُقْضَىٰ عَلَيْهِمْ فَيَمُوتُوا۟ وَلَا يُخَفَّفُ عَنْهُم مِّنْ عَذَابِهَا ۚ كَذَٰلِكَ نَجْزِى كُلَّ كَفُورٍۢ ﴾

“But as for those who are bent on denying the truth - the fire of hell awaits them: no end shall be put to their lives so that they could die, nor shall aught of the suffering caused by that [fire] be lightened for them: thus shall We requite all who are bereft of gratitude.”

Those who deny the Truth in this world will admit the Truth in the Hereafter. But this will be of no avail, because in the Hereafter, such an admission will be made under compulsion, whereas God seeks voluntary submission from man. It is the denial and obstinacy of such wrongdoers which will make them incur the eternal wrath of God.