It is possible to close ourselves to grace, both human and divine. But only grace can pry open the door that has been shut in its face. So God continues to give to the ungrateful and to forgive the unrepentant. Christ stands before the closed door of a grace-resistant heart and knocks gently with a nail-pierced hand.
So should we. When things go well, gifts engender gifts, and forgiveness gives birth to forgiveness. That’s the power of giving and forgiving. When things go ill, gifts fall on hard soil, and forgiveness remains barren. That’s the impotence of givers and forgivers, for they can only “knock at the door” by giving and forgiving. And then they must wait . . . and knock again and wait — trusting that the Spirit of the resurrected Christ will make the seed of their forgiveness bear fruit.
— Miroslav Volf, Free of Charge, p. 205