42-44
And he whom Allah leaves to stray, then for him there is no guardian after that. And you will see those who were unjust, that when they see the punishment they will say, “”Is there any way to return?””
The condition of the infidels is described.
42-47
Respond to your Fosterer before the coming of the day from Allah, for which there is no turning back. On that day there will be no refuge for you nor will you have (the power of) rejection.
“On the day of judgment there will be no refuge for the infidels”
42-48
But if they turn away, then We have not sent you as a custodian over them, there is nothing (incumbent) on you except conveyance (of the message). And when We make man taste mercy from Us, he is exultant there at, but when an evil afflicts them due to what their hands have sent forth, then man certainly becomes ungrateful (forgetting the earlier good days).
The behavior of people in prosperity and adversity is described
42-49
Allah’s is the kingdom of the skies and the earth. He creates what He wills, He grants females (daughters) to whom He wills and He grants males (sons) to whom He wills.
The choice of giving or not giving sons and / or daughters is Allah’s ( SWT)
42-51
And it is not (possible) for a man that Allah should speak to him except (through inspirational) communication or from behind a veil or by sending a messenger who communicates by His permission what He wills, He is certainly High, Wise.
Three ways of communicating Divine messages are described. Before receiving the Quran Prophet Muhammed (PBH) did not know what the book was and what belief was, he was guided through the Quran, then he became the source of guidance for others towards the path of Allah (SWT) the Owner of everything.