﴿ وَمَا نُرْسِلُ ٱلْمُرْسَلِينَ إِلَّا مُبَشِّرِينَ وَمُنذِرِينَ ۖ فَمَنْ ءَامَنَ وَأَصْلَحَ فَلَا خَوْفٌ عَلَيْهِمْ وَلَا هُمْ يَحْزَنُونَ ﴾

“And We send [Our] message-bearers only as heralds of glad tidings and as warners: hence, all who believe and live righteously -no fear need they have, and neither shall they grieve;”

In the last verse (45), it was said that, when the mass punishment of Allah Ta` ala came, the people who did wrong were uprooted to the last man. Said immediately after was: وَالْحَمْدُ لِلَّـهِ رَ‌بِّ الْعَالَمِينَ (And praise be to Allah, the Lord of the worlds) where the hint given is: Whenever the wrongdoers and the unjust are visited by some punishment or calamity, that is a blessing for the whole world for which people should be grateful.