To doubt our salvation after we have trusted Him is to doubt not ourselves, but Christ Himself. While we cannot lose our salvation, we can lose our assurance if we lose sight of the Lord's promises. That is why I consider the doctrine of eternal security to be so important. One cannot be sure of his salvation without believing in it. It is part and parcel of God's offer to us in Christ.
Eternal security is the queen of Bible doctrines.
It comforts me daily. It engenders in me a tremendous sense of gratitude. Bob Wilkin is the Founder and Executive Director of Grace Evangelical Society.