Say: 'I call only upon my Lord, and I do not associate with Him anyone. 20 Say: 'Surely I possess no power over you, either for hurt or for rectitude.' 21 Say: Surely no one can protect me against Allah, nor can I find besides Him any place of refuge: 22 My duty is only to convey that which I receive from Him and His messages." For those who disobey God and His Messenger there is the fire of hell, wherein they will abide forever. 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 which you are promised is near, or whether my Lord will set for it a time. 25 Knower He of the Unseen, and He discloses not 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