Then We saved him and those who were with him by the Mercy from Us, and We cut off the roots of those who rejected Our verses, and they were not believers.
Lord says in verse 10: 103: "Just like that it is Our duty to save the believers’', and in verse 21: 88 Lord says: "Just like that We are saving the believers", and in verse 30: 47 Lord says: "Surely, whenever the Messengers came to their people with the Explanations, Lord took revenge upon the Mujirims, and it is His duty to help the believers". It is told in verse 40: 51 that indeed, Lord will help His Messengers and the believers in this world as well as on the Day the witnesses stand forth. By codifying Adhikr which is the Safeguard from all the calamities, disasters, diseases, and Hell, the Creator Lord has become Impartial. So the believer who holdfasts Adhikr did holdfast Lord, and he will not be affected by any evil or disaster. Doomsday will occur when all mankind becomes wrongdoers and transgressors like the Arabic Quran reading Fujjar.
The history of Messenger Hood and his people is explained through verses 11: 50-60; 26: 123-140; 46: 21-28; 54: 18-22; 69: 4, and 6-8. Mercy is one of the forty names of Adhikr. See explanation 6: 45-47 and 7: 40.