AL QURAN .. FIRMAN ALLAH SWT ..

"All praise is due to Allah, to Whom belongs whatever is in the heavens and whatever is in the earth, and to Him belongs all praise in the Hereafter; and He is the All-Wise, the All-Aware."

Quran | ch.34 

And We did test those who were before them. So Allah will surely distinguish those who are truthful and He will surely distinguish the liars from the truthful."
Quran | ch.29

"Then We forgave you after that, so perhaps you would be grateful."

Quran | ch.2