There is a lot of talk about assurance of salvation, whether it is possible, how it is to be had, whether it is necessary, on and on and on. I really do not think it is the point. The point is simply this, “It is not I who lives, but Christ who lives in me. The life I now live in the body I live by faith in the Son of God who loved me and gave Himself for me.” It's not about whether or not you or I can lose eternal life... It's about the fact that Jesus Christ is eternal life. It is all about Him. How many times did He say, “I am He?” Let us cease to look at ourselves and instead look to Him. “You have been buried with Him through baptism into death.” Salvation – everything – is about Christ. “He who descended is also He who ascended that He might fill all things.” Salvation means that we die and are raised in Christ.
This is the way to conquer fear.
Fear of what will happen to me? God loves me and is in control of all things. He is sovereign and He loves me as no other can love. This is eternal comfort, but it is not even about eternal comfort; it is about the fact that He is good, that His love is real, that He is YHWH. (How I wish I could say this without using words like I!) Even though I should not know His love, not know His goodness, even though I should forget all that I have ever known of Him (unless He continually gives me the knowledge of Himself I must forget it, for it is knowledge of eternity, eternal knowledge; it is not the kind of thing a creature can keep; it must be continually received by grace through faith,) even though I should turn my back on Him... still, He is good. He remains unchanged. He is Love. He is YHWH – I AM WHO I AM – I am He.