Translation of the verse 41 from Surah Fussilat : Number of verses 54 - - page 481 - Part 24.
Verily, those who disbelieved in the Reminder (i.e. the Quran) when it came to them (shall receive the punishment). And verily, it is an honourable respected Book (because it is Allah's Speech, and He has protected it from corruption, etc.). (See V. 15:9]
Indeed, those who disbelieve in the message after it has come to them... And indeed, it is a mighty Book.
(41:41) These are the ones who rejected the Good Counsel when it came to them, although it is certainly a Mighty Book. *51
*51) "A mighty Book": An unchanging Book, which cannot be defeated by tricks and cunning devices, which the worshippers of falsehood are employing against it. It has the force of the Truth in it, the force of true knowledge, the force of argument and reason, the force of eloquence and style, the force of Divinity of God Who sent it, and the force of the personality of the Messenger who presented it. No one, therefore, can defeat it by falsehood and hollow propaganda .