And We verify did allot unto the Children of Israel a fixed abode, and did provide them with good things; and they differed not until knowledge came unto them. Lo! thy Lord will judge between them on the Day of Resurrection concerning that wherein they used to differ.
And if thou (Muhammad) art in doubt concerning that which We reveal unto thee, then question those who read the Scripture (that was) before thee. Verily the Truth from thy Lord hath come unto thee. So be not thou of the waverers.
If only there had been a community (of all those that were destroyed of old) that believed and profited by its belief as did the folk of Jonah. When they believed We drew off from them the torment of disgrace in the life of the world and gave them comfort for a while.
Say (O Muhammad): O mankind! If ye are in doubt of my religion, then (know that) I worship not those whom ye worship instead of Allah, but I worship Allah who causeth you to die, and I have been commanded to be of the believers.