Doubt In Assurance

The doctrine of assurance is so important to the lives of
Christians because it gets at the heart of the nature of salvation
and of God's character. Our war with sin has been won already, but
in the battles left to fight until we're glorified, Christians
often get discouraged. One of the most unfortunate and darkest ends
of this discouragement is when one believes that they are no longer
under the grace that saved them in the first place. This is a
horrible predicament, because they are left in a position where
they still believe in the existence of God and his justice, but now
feel they are under his judgment. This obviously can be completely
debilitating in every area of life.