1. This verse is the brief introduction to the Surah, and immediately after this begins its theme. “These are the verses of the Book and a clear Quran”: These are the verses of that Quran which makes its meaning lucid and understandable.

2. This is to refute the fallacious argument of the disbelievers that Muhammad (peace be upon him) was not a true Prophet because they had received no prompt punishment for their disbelief. It is like this: We have never seized a community at the first committal of kufr.

We prescribe a limit for every community to hear and understand the message and reform its ways. Then We tolerate its mischief and evil deeds up to that limit and allow it full freedom to do as it likes, and give it respite till the term expires. That is why We are tolerating their attitude of ridicule and denial. (For the full meaning of respite, please refer to ( E.N. 18 of Surah Ibrahim).

3. The word zikr literally means “to cause to remember”, “to caution” and “to give advice”. But the Quran has used it as a technical term for “admonition”, which comes as a precept. Thus all the Books that had been sent down to the Messengers were zikr, and the Quran is also zikr.