Say, [O Muhammad], "I only invoke my Lord and do not associate with Him anyone." 20 Say: "It is not in my power to cause you harm, or to bring you to right conduct." 21 Say: 'From God shall protect me not anyone, and I shall find, apart from Him, no refuge, 22 (It is) only a delivering (of communications) from Allah and His messages; and whoever disobeys Allah and His Apostle surely he shall have the fire of hell to abide therein for a long time. 23 They shall go on denying until they; behold that which they are promised wherefore then they shall know who were weaker in protectors and fewer in number. 24 Say, "I do not know if what you are promised is near or if my Lord will grant for it a [long] period." 25 He is the Knower of the Unseen, and He does not disclose His Unseen to anyone 26 except only to a Messenger that He has chosen, and He sends guardians before him and behind him, 27 "That He may know that they have (truly) brought and delivered the Messages of their Lord: and He surrounds (all the mysteries) that are with them, and takes account of every single thing." 28