Quran on Repentance

They swear by Allah that they said nothing (wrong), yet they did say the word of disbelief, and did disbelieve after their Surrender (to Allah). And they purposed that which they could not attain, and they sought revenge only that Allah by His messenger should enrich them of His bounty. If they repent it will be better for them; and if they turn away, Allah will afflict them with a painful doom in the world and the Hereafter, and they have no protecting friend nor helper in the earth.

And they say: Our hearts are hardened. Nay, but Allah hath cursed them for their unbelief. Little is that which they believe.

Lo! those of you who turned back on the day when the two hosts met, Satan alone it was who caused them to backslide, because of some of that which they have earned. Now Allah hath forgiven them. Lo! Allah is Forgiving, Clement.

But whoso repenteth after his wrongdoing and amendeth, lo! Allah will relent toward him. Lo! Allah is Forgiving, Merciful.

We confound their hearts and their eyes. As they believed not therein at the first, We let them wander blindly on in their contumacy.

And (bidding you): Ask pardon of your Lord and turn to Him repentant. He will cause you to enjoy a fair estate until a time appointed. He giveth His bounty unto every bountiful one. But if ye turn away, lo! (then) I fear for you the retribution of an awful Day.

Make not your oaths a deceit between you, lest a foot should slip after being firmly planted and ye should taste evil forasmuch as ye debarred (men) from the way of Allah, and yours should be an awful doom.

And the heart of the mother of Moses became void, and she would have betrayed him if We had not fortified her heart, that she might be of the believers.

And let not Satan turn you aside. Lo! he is an open enemy for you.

The heart lied not (in seeing) what it saw.

Is not the time ripe for the hearts of those who believe to submit to Allah's reminder and to the truth which is revealed, that they become not as those who received the scripture of old but the term was prolonged for them and so their hearts were hardened, and many of them are evil-livers.

Nay, but that which they have earned is rust upon their hearts.