Islâm teaches us to ask Allâh’s forgiveness for our sins. It enlightens us to know that Allâh is the Only One Who can forgive our sins and therefore save us from any sort of punishment in the life Hereafter. It guides us to know Him and seek for His forgiveness:

“...And know that Allâ...h knows what is in your hearts and take heed of Him; and know that Allâh is Oft Forgiving, Most Forbearing.” (2:235)

NJB