The doctrine of assurance is one with which most if not all Christians struggle, at least once in their life. Many definitions, means and methods have been and still is being suggested by movements and preachers in Christendom.
Here is one helpful sermon by Dr. Sam Waldron on this important matter of assurance. Waldron begins with a short explanation of what saving faith is, followed by his presentation of a four-point perspective on what the Bible teaches about assurance, and his concluding applications.
It is hoped that this sermon would encourage and warn Christians in this crucial issue of assurance.