Proclaim: "O My servants who exceeded the limits (who acted extravagantly), never despair of GOD's mercy. For GOD forgives all sins. He is the Forgiver, Most Merciful."
You shall obey your Lord, and submit to Him totally, before the retribution overtakes you; then you cannot be helped. And follow the best path that is pointed out for you by your Lord, before the retribution overtakes you suddenly when you least expect it.
Lest a soul may say, "How sorry I am for disregarding GOD's commandments; I was certainly one of the mockers."
Or say, "Had GOD guided me, I would have been with the righteous." Or say, when it sees the retribution, "If I get another chance, I will work righteousness." Yes indeed (you did get enough chances). My proofs came to you, but you rejected them, turned arrogant, and became a disbeliever.
On the Day of Resurrection you will see the faces of those who lied about GOD covered with misery. Is Hell not the right retribution for the arrogant ones?
And GOD will save those who have maintained righteousness; He will reward them. No harm will touch them, nor will they have any grief. GOD is the Creator of all things, and He is in full control of all things. To Him belongs all decisions in the heavens and the earth, and those who disbelieve in GOD's revelations are the real losers. (Quran, 39:53-63)
In the Final Testament (The Koran, also spelled as Quran), God declares about Divine Mercy,