If you want God's grace, all you need is need, all you need is nothing. But that kind of spiritual humility is hard to muster. We come to God saying, "Look at all I've done," or maybe "Look at all I've suffered." God, however, wants us to look to him - to just wash.
Timothy Keller (2009). “Counterfeit Gods: The Empty Promises of Money, Sex, and Power, and the Only Hope that Matters”, p.56, Penguin