123. A Quran without contradictions.

 These verses (4:82, 41:42) of the Quran says there are contradictions and errors in the Quran.

Man, however intelligent he may be, is prone to forget things he said or misunderstands something initially and corrects it later. Due to the stress caused by various issues and difficulties faced by him in his everyday life, he tends to forget things he uttered the previous day and contradicts himself the following day.

Since God does it above forgetfulness, ignorance, or stress, there cannot be contradictions in the words of God. 

The Quran was not revealed at a single point of time as a whole book. It was delivered gradually over a period of 23 years.

 If it was the words of Prophet Muhammad, it would have carried many contradictions in it. But there are no contradictions in the Quran. This proves the Quran is the word of God. 

To know more on this please refer to the preface titled ‘This is God’s word’.