21. That is, to call upon Allah is no objectionable thing, which may so provoke the people. The evil thing, however, is that one should associate another with Allah in His divinity, and this I never do; this is done by those who mob and surround me when they hear God mentioned by me.
22 That is, I do not claim to have any share or role in the Godhead of Allah, nor that I possess any power in making or marring the people’s destinies. I am only a Messenger and the mission that has been entrusted to me is no more than that I should convey the messages of Allah to you. As for the powers of Godhead, they wholly belong to Allah. Not to speak of benefiting or harming others, I do not have the power to cause good or harm even to myself. If I disobey Allah, I cannot seek and have refuge anywhere from His punishment, and I have no helper and protector beside Allah. (For further explanation, see (E.N. 7 of Surah Ash-Shura).
23. This does not mean that every sin and act of disobedience will cause one to live in Hell forever, but in view of the context in which this thing bas been said, the verse means: the one who does not accept the invitation to Tauhid given by Allah and His Messenger (peace be upon him) and does not refrain from polytheism will suffer in Hell forever.
24. The background of this verse is that those of the Quraish who used to mob and surround the Prophet (peace be upon him) as soon as they heard his invitation calling to Allah were under the delusion that they had a strong band at their back and that the Prophet (peace be upon him) had only a handful of men with him, and therefore, they would easily overwhelm him. At this it is being said: Today these people find the Messenger (peace be upon him) helpless and friendless and they themselves supported and strengthened by great hosts and, therefore, feel encouraged and emboldened to suppress the invitation to the truth. But when the evil time with which they are being threatened comes, they will know who in fact is helpless and friendless.
25. The style itself shows that this is an answer which has been given without citing the question. Probably, hearing what has been said above, the opponents might have asked mockingly and tauntingly: When will the time come with which you are threatening us. In response, the Prophet (peace be upon him) was commanded to say: The time will certainly come, but I have not been told the date of its coming. Allah alone knows whether it will come soon or whether a distant term has been set for it.
26. That is, the knowledge of the unseen entirely rests with Allah: He does not give the whole of this knowledge to anyone.
27. That is, the Messenger (peace be upon him) by himself is no knower of the unseen, but when Allah chooses him to perform the mission of Prophethood, He grants him the knowledge of those of the unseen truths which He is pleased to grant.
28. Guards: Angels, that is, when Allah sends down the knowledge of the unseen realities to the Messenger (peace be upon him) by revelation, He appoints angels on every side to safeguard it so that the knowledge reaches the Messenger in a safe condition, free from any kind of adulteration. This is the same thing which has been expressed in verses 8-9 above, saying: After the appointment of the Messenger (peace be upon him) the jinn found that all the doors to the heavens had been closed, and they noticed that strict security measures had been adopted because of which no room had been left for them to eavesdrop.
29. This can have three meanings: (1) That the Messenger (peace be upon him) may know that the angels have delivered the messages of Allah to him precisely and accurately. (2) That Allah may know that the angels have conveyed the messages of their Lord to His Messenger (peace be upon him) precisely and accurately. (3) That Allah may know that the Messenger (peace be upon him) has conveyed the messages of his Lord to His servants precisely and accurately. The words of the verse are comprehensive and may possibly imply all the three meanings. Besides, the verse also points out two other things. First, that the Messenger (peace be upon him) is given that knowledge of the unseen which is necessary for him to perform his mission of Prophethood. Second, that the angels keep watch that the revelation reaches the Messenger (peace be upon him) safely and also that the Messenger (peace be upon him) conveys the messages of his Lord to His servants precisely and accurately.
30. That is, Allah’s power so encompasses the Messenger (peace be upon him) as well as the angels that if they swerve even a little from His will, they can be detected immediately. Moreover, a complete record has been kept of each letter of the messages sent down by Allah. The Messengers (peace be upon him) and the angels cannot dare add or subtract even a letter from them.