وَلَا يَنفَعُكُمْ نُصْحِي إِنْ أَرَدتُّ أَنْ أَنصَحَ لَكُمْ إِن كَانَ اللَّهُ يُرِيدُ أَن يُغْوِيَكُمْ ۚ هُوَ رَبُّكُمْ وَإِلَيْهِ تُرْجَعُونَ (34)
(11:34) If I want to give you good advice that will not profit you if Allah Himself has decided to let you go astray. *38 He is your Lord, and to Him will you be returned.'
*38). Such was their obduracy, mischievousness and absolute disregard for righteous behaviour that quite understandably God should decide not to direct them to the right way and instead let them, as they wished, stumble in error. Once God had made such a decision no one's effort to direct them to the right way - not even the Prophet's - could be of any avail.