( قُلْ فَلِلَّهِ الْحُجَّةُ الْبَالِغَةُ) (Say, “With Allah is the far-reaching argument): An argument is an evidence that we establish to support our claims in a dispute, and Allah (swt) has (the far-reaching argument), such as the argument of proving Allah’s (swt) Ownership of all that is in the heavens and on earth.

(فَلَوْ شَاءَ لَهَدَاكُمْ أَجْمَعِينَ) (If He had willed, He would have guided you all): If Allah (swt) had so willed, He (swt) would have forced all people to believe. But Allah (swt) does not want just submissive bodies, He (swt) wants pure hearts that made their own decision to believe, and that is the difference.