Prophet Hud - 11:114
Observe the prayer at both ends of the day and the close part of the night. The good deeds wipe away the evil deeds. This is an admonition for those who will take admonition.
The good deeds we do are instrumental in erasing some of our sins:
The Cow/2:271
How good it would be if you revealed your charity. But it is better if you hide them and give them to the needy, and that will cover some of your sins. Allah is aware of what you do.
The Family Of Imran/3:195
"Their Lord answered them: "I will not leave unrewarded any of you who works, whether male or female; you are all equal. Those who emigrated, those who were expelled from their homes, those who were tortured and insulted in My way, those who fought and were killed... I will cover their evil deeds and place them in gardens with rivers flowing in them as a reward from Allah. The best reward is with Allah."
The Women/4:31
If you avoid the great prohibitions, We will cover your sins and admit you with an honorable entrance.
The Table Spread/5:12
"Allah had taken a promise from the Children of Israel and We sent twelve leaders from among them. Allah said: "I am with you if you observe the prayer, pay the zakat, believe in My messengers and respect them, and lend to Allah a good debt. I will cover your sins and give you gardens in which rivers flow. So whoever of you disbelieves after that has gone astray from the right path."
The Table Spread/5:45
There We commanded them: We commanded them: Life for life, eye for eye, nose for nose, ear for ear, tooth for tooth and wounds for wounds. Whoever gives up this right, He will cover his sins. Those who do not judge by what Allah has revealed are wrongdoers.
The Spider/29:7
Those who believe and do righteous deeds, We will certainly cover their evil deeds and reward them with better than what they used to do.
The Manifestation of Losses/64:9
A day will come when We will gather you for the Day of gathering. This is the Day of deception. Whoever believes in Allah and does righteous deeds, He will cover his evil deeds and admit him into Gardens beneath which rivers flow. There they will abide forever. That is the great success.
Divorce/65:5
This is the Commandment of Allah which He has sent down to you. Whoever listens to Allah, He covers his evil deeds and increases his reward.