Answers to non-believers on authenticity of the Holy Quran

When the verses of The Holy Quran used to descend upon The Prophet Muhammad صلى الله عليه وسلم and he use to recite them to the non-believers, they could not find any strong arguments against the Quranic statements. Thus they used to lay down various allegations to deny that these verses were the true message from Allah سبحانه وتعالى. They alleged that the Holy Quran was invented and fabricated by The Prophet صلى الله عليه وسلم and that such and such person had helped him in this task. At other occasions, they declared the Holy Quran as a piece of poetry, a magical spell, the words of a fortune-teller, or the tales of ancient times. They also objected why the Holy Quran was not revealed in full in the form of a written book so that they could touch it. Allah سبحانه وتعالى in the Holy Quran has given very eloquent answers to all these objections and allegations and has put forward very strong circumstantial evidence to prove that the Holy Quran a true message from Allah سبحانه وتعالى. He has also declared that all these allegations have been raised just as an excuse to shut their eyes from the reality and deny the true message of the Holy Quran.