And when the preservation of what occurs among them, due to their multitude over long periods of time, is a tremendous matter, he followed his saying: ﴿Do you not know that Allah﴾ with the majesty of His might and great authority ﴿knows what is in﴾. And since the context is for the preservation of the conditions of the two weighty ones for the judgment among them, and it is most imagined that some of the jinn reach eavesdropping from the lower heavens, there was no need to mention more than this. So he specified by expressing what encompasses it due to its being a genus - the many as well - and said: ﴿the heavens and the earth﴾ from what agrees (p-92) among them and others from all of the creatures, animals and otherwise.

And when man is a place of forgetfulness, he does not preserve matters except by writing, he addressed him with what he knows, along with what is in it of wondrous power. So he said: ﴿Indeed, that﴾ meaning that great matter ﴿is in a Book﴾ in which everything is written that He has decreed to occur before its occurrence and has written its recompense; and when gathering that in a Book is a matter that is difficult for man, he followed it with the clarification of its ease with Him, saying: ﴿Indeed, that﴾ meaning the knowledge of that great matter without a Book, and gathering it in a Book before its existence and after it ﴿is easy for Allah﴾ meaning the One whose greatness has no limit, alone.