Vindication of believers and exposure of disbelievers

لِيُبَيِّنَ لَهُمُ ٱلَّذِى يَخْتَلِفُونَ فِيهِ وَلِيَعْلَمَ ٱلَّذِينَ كَفَرُوٓا۟ أَنَّهُمْ كَانُوا۟ كَـٰذِبِينَ

[It is] so He will make clear to them [the truth of] that wherein they differ and so those who have disbelieved may know that they were liars.