Duty or guilt may motivate us for awhile, but only a sense of Christ's love for us will motivate us for a lifetime.
We fail to see the gospel as the solution to our greatest problem-our guilt, condemnation, and alienation from God. Beyond that, we fail to see it as the basis of our day-to-day acceptance with Him. As a result, many believers live in spiritual poverty.
We believers do need to be challenged to a life of committed discipleship, but that challenge needs to be based on the gospel, not on duty or guilt. Duty or guilt may motivate us for awhile, but only a sense of Christ's love for us will motivate us for a lifetime.
Instead of living in the sunshine of God's forgiveness through Christ, we tend to live under an overcast sky of guilt most of the time.