Say, "I call only upon my Lord and do not associate anyone else with Him." 20 Say, "I do not possess any power to harm or benefit you". 21 Say: Surely no one can protect me against Allah, nor can I find besides Him any place of refuge: 22 if I should fail to convey [to the world whatever illumination comes to me] from God and His messages." Now as for him who rebels against God and His Apostle - verily, the fire of hell awaits him, therein to abide beyond the count of time. 23 Till the time when they will see what they are promised – so they will now come to know whose aide is weak, and who is lesser in number. 24 Say: I do not know whether that with which you are threatened be nigh or whether my Lord will appoint for it a term: 25 He is the Knower of the Unseen, and He does not disclose His Unseen to anyone 26 Other than an apostle He has chosen, when He makes a sentinel walk in front of him and a sentinel behind, 27 so as to make manifest that it is indeed [but] their Sustainer's messages that these [apostles] deliver: for it is He who encompasses [with His knowledge] all that they have [to say,] just as He takes count, one by one, of everything [that exists]. 28