If you truly love Allah, then follow me; Allah will love you and forgive you your sins; and Allah is Forgiving and Merciful.
Al Imran: 31
So when they forgot that by which they had been reminded, We opened to them the doors of every [good] thing until, when they rejoiced in that which they were given, We seized them suddenly, and they were [then] in despair.

Surat Al-‘An`ām 6:44

O Allah, I seek Your forgiveness for those wrongdoings for which I had turned repentant unto you but have done again. I seek your forgiveness for those deeds which I planned to do for your sake only but afterwards other interests not connected with You crept in, and I seek Your forgiveness for my taking advantage of the bounties, You gave me, in order to disobey You. I seek forgiveness of Allah (who is) “There is no god save He, the self-subsisting, the knower of the unknown and known, the beneficent, the merciful.” For all those sins which I have committed and for all those transgressions I perpetrated. O Allah grant me perfect ability to use, follow and apply reason, astute and keen determination, preponderant genius, pure heart, all-embracing wisdom and beautiful elegent manners. Let all these favours work for my good; let them not harm me, through your mercy, O the most merciful.
Sahifa Alawiyyah by Imam Ali Ibn Abi Talib