When the law was given, a sin-consciousness was added to man’s self-consciousness… Then into the darkness of this pitiful plight came the brightness of the gospel. We will find that it is in the nature of grace to always rush toward need: “Where sin increased, grace abounded all the more” (Rom 5:20). The only thing that grace requires is a need into which to pour itself. Grace is not looking for the independent or the secure, but for the helpless. All that is necessary to qualify for the grace of God is to be needy… One of the most beautiful characteristics of the grace of God is that it is inexhaustible. Even with all your addictions, insecurities, and frailties, you cannot create a need so big that grace cannot meet it. The bigger the hole, the more grace there is to fill it. Even one who has been to God a million times with the same problem need not fear exhausting the grace of God.
Grace Works, Vine Books, 1992, 256-7.