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 either harm or good?" 21 Say: 'From God shall protect me not anyone, and I shall find, apart from Him, no 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 (They shall not change their ways) until they see that against which they had been warned, and then they will know whose helpers are weaker and whose supporters are 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 Other than an apostle He has chosen, when He makes a sentinel walk in front of him and a sentinel behind, 27 so that He may know that they have delivered the messages of their Lord. He encompasses in His knowledge their surroundings and keeps a count of all things.” 28