Therefore, whatever of it you have knowledge in, then implement it, and whatever you do not know of it, then refer it to those who have knowledge in it Kalau kiranya Al Quran itu bukan dari sisi Allah, tentulah mereka mendapat pertentangan yang banyak di dalamnya
The main reason for the attitude of the hypocrites and lukewarm believers was their lack of conviction that the Qur'an came from God

Surat An

However, this Qur'an is free of shortcomings, and therefore, it is from Allah.

13
ما وجه ارتباط قوله تعالى (أفلا يتدبرون القرآن) بما قبله؟
Allah states that there are no inconsistencies, contradictions, conflicting statements or discrepancies in the Qur'an, because it is a revelation from the Most-Wise, Worthy of all praise
القرآن الكريم
ما وجه ارتباط قوله تعالى (أفلا يتدبرون القرآن) بما قبله؟
Sekiranya Alquran itu bukan dari sisi Allah, tentulah akan mereka jumpai di dalamnya pertentangan yang banyak baik dalam makna maupun dalam susunannya
It is also inconceivable that such a work would be permeated through and through with a uniform outlook and attitude, a work reflecting a remarkable consistency in the mood and spirit of its Author, and a work too mature ever to need revision Therefore, the Qur'an is the truth coming from the Truth, Allah
They did not believe that the Prophet peace be on him had received the messages and directives that he preached from God Himself The Qur'an does not contradict itself

آیه 82 سوره نساء

So they understand the not entirely clear from the clear, and thus gain guidance.

19
Surat An
Allah praised those who have knowledge and criticized the wicked
أفلا يتدبرون القرآن ۚ ولو كان من عند غير الله لوجدوا فيه اختلافا كثيرا
We did not like the idea of being separate from them, so we sat near the room
السبب في حفظ الله تعالى للقرآن دون بقية الكتب
Indonesia - Bahasa Indonesia : Maka apakah mereka tidak memperhatikan Al Quran Kalau kiranya Al Quran itu bukan dari sisi Allah tentulah mereka mendapat pertentangan yang banyak di dalamnya• This is how the nations before you were destroyed, because of their disputing with their Prophets and their contradicting parts of the Books with other parts