Repentance in Islam description

Imaam Ibn Qayyim mentions:
Repentance is the most noble and beloved form of obedience in the eyes of Allah Ta'ala. He loves those who repent and it is because of His love for His creation that He tests them with sins so that He may shower His blessings and favours upon them after they repent.

This is an important aspect of Islam, the Deen that was revealed to the Prophet Muhammad (peace be upon him), mentioned in the Quran and Sunnah (hadith).