Say: "I do no more than invoke my Lord, and I join not with Him any (false god)." 20 Say, "It is not in my power to cause you either harm or good?" 21 Say thou: verily none can protect me from Allah, nor can I find beside Him any 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 day) when they shall behold that which they are promised (they may doubt); but then they will know (for certain) who is weaker in allies and less in multitude. 24 Say: "I do not know whether that [doom] of which you were forewarned is near, or whether my Sustainer has set for it a distant term." 25 The Knower of the unseen! so He does not reveal His secrets to any, 26 Other than an apostle He has chosen, when He makes a sentinel walk in front of him and a sentinel behind, 27 That He may know that they have preached the message of their Lord. And He comprehendeth whatever is with them, and He keepeth count of everything numbered. 28