42:13 It is DIFFICULT for the MUSHRIKEEN to Leave OTHER ILAHA that they follow/obey beside Allah.

42:13 شَرَعَ لَكُم مِّنَ الدِّينِ مَا وَصَّىٰ بِهِ نُوحًا وَالَّذِي أَوْحَيْنَا إِلَيْكَ وَمَا وَصَّيْنَا بِهِ إِبْرَاهِيمَ وَمُوسَىٰ وَعِيسَىٰ ۖ أَنْ أَقِيمُوا الدِّينَ وَلَا تَتَفَرَّقُوا فِيهِ ۚ كَبُرَ عَلَى الْمُشْرِكِينَ مَا تَدْعُوهُمْ إِلَيْهِ ۚ اللَّهُ يَجْتَبِي إِلَيْهِ مَن يَشَاءُ وَيَهْدِي إِلَيْهِ مَن يُنِيبُ Sahih International He has ordained for you of religion what He enjoined upon […]

42:52 Ash-Shura. Rasulullah sallillahu alaihi wa sallam DID NOT KNOW the BOOK nor he knew about FAITH. 

My Comment and understanding: This Ayah is for those who think Rasulullah sallillahu Alaihi Wa Sallam has made Islam, or he made it from his own knowledge or he made it because he contemplated in the cave of Heera, but it is Allah who guided him and it is from Allah, the book is from Allah. […]

42:52. Rasulullah Sallillahu Alaihi Wa Sallam did NOT KNOW the BOOK nor he knew about the FAITH. 

The Ayah Ash-Shura 42:52 وَكَذَٰلِكَ أَوْحَيْنَا إِلَيْكَ رُوحًا مِّنْ أَمْرِنَا ۚ مَا كُنتَ تَدْرِي مَا الْكِتَابُ وَلَا الْإِيمَانُ وَلَٰكِن جَعَلْنَاهُ نُورًا نَّهْدِي بِهِ مَن نَّشَاءُ مِنْ عِبَادِنَا ۚ وَإِنَّكَ لَتَهْدِي إِلَىٰ صِرَاطٍ مُّسْتَقِيمٍ And thus We have revealed to you an inspiration of Our command. You did not know what is the Book or [what […]

42:13 Allah COMMANDED to ESTABLISH Allah’s SYSTEM in EVERY ASPECT of your LIFE

He has ordained for you all, the same System of Life that He enjoined upon Noah – And We have revealed to you (O Prophet) the same Message as We enjoined upon Abraham, Moses, and Jesus: “Establish the Divine System of Life and make no sects in it.”