Luke 7:47.."Therefore, I tell you, her many sins have been forgiven --for she loved much. But he who has been forgiven little loves little." (NIV)
We are forgiven not because we deserve it, but because it is the only way. Those who have the greatest sin have the greatest opportunity for the Lord to do a work in their lives, creating a heart of praise, and thanksgiving toward Him. Paul's life had often proven that people with the most desperate needs, are the most grateful for their healing. However true this plan of salvation may be, there are always those who are overwhelmed with their guilt and find it hard to believe that they could ever become innocent in Gods eyes. This is due to an ignorance of Gods mercy. The one who decides on less forgiveness can only be ourselves. God does not determine He is going to forgive one person more than the next. He doesn't say I'm going to forgive this man a lot and this man a little. His standards are the same for everyone. Whether we are perishing through ignorance or rebellion, Gods forgiveness is still available for the sinner.
In conclusion, Gods forgiveness is not given in degrees. Either He forgives the repentant sinner, or He rejects the rebellious. In both cases the responsibility to receive much or little depends on us. So I ask you-- Why would God hold back the only thing that works for sinners? The answer is He doesn't, we do.