"How can I be sure of my salvation?"
"If a person is genuinely saved by faith, that person will manifest the fruit of faith."
James 2:17 says, ". . . faith by itself, if it is not accompanied by action, is dead." Is faith simply a matter of agreeing with a doctrine or giving mental assent to a list of theological positions? James emphatically says, "No!" If a person is genuinely saved by faith, that person will manifest the fruit of faith.
The Truth is this: Works cannot save us—we are saved "by grace . . . through faith" (Ephesians 2:8-9)—but works prove our faith is genuine.
A counterfeit faith affects only your intellect, but authentic faith involves the will, emotions, the spirit, the soul—every aspect of your life. Your mind will comprehend the Truth. Your heart will desire the Truth. Your soul will act on the Truth. Genuine faith denies the self, moves mountains, knows answered prayer, loves others, and continually seeks to please the Lord. This is the work of the Holy Spirit in your life as you surrender to Him.