And seek forgiveness of Allah. Indeed, Allah is ever Forgiving and Merciful.

And do not argue on behalf of those who deceive themselves. Indeed, Allah loves not one who is a habitually sinful deceiver.

They conceal [their evil intentions and deeds] from the people, but they cannot conceal [them] from Allah, and He is with them [in His knowledge] when they spend the night in such as He does not accept of speech. And ever is Allah, of what they do, encompassing.

Here you are - those who argue on their behalf in [this] worldly life - but who will argue with Allah for them on the Day of Resurrection, or who will [then] be their representative?

And whoever does a wrong or wrongs himself but then seeks forgiveness of Allah will find Allah Forgiving and Merciful.