Say: "O My servants who have transgressed against themselves! Despair not of the mercy of Allah, verily, Allah forgives all sins. Truly, He is Oft-Forgiving, Most Merciful.''(39:53) This Ayah is a call to all sinners, be they disbelievers or others, to repent and turn to Allah. This Ayah tells us that Allah, may He be blessed and exalted, will forgive all the sins of those who repent to Him and turn back to Him, no matter what or how many his sins are, even if they are like the foam of the sea.

Know they not that Allah accept repentance from His servants? (9:104)

And whoever does evil or wrongs himself but afterwards seeks Allah's forgiveness, he will find Allah Oft-Forgiving, Most Merciful. (4:110)

Allah invites all to His forgiveness; those who claim that the Messiah is God, those who claim that the Messiah is the son of God, those who claim that `Uzayr is the son of God, those who claim that Allah is poor, those who claim that the Hand of Allah is tied up, and those who say that Allah is the third of three (Trinity).

Allah says to all of these:
Will they not turn in repentance to Allah and ask His forgiveness For Allah is Oft-Forgiving, Most Merciful. (5:74)

Will I be getting my own 72virgins?