Reason #4. They reject the doctrine of the eternal security of the believer.
Let us remind ourselves of the clear distinction between the “security of the believer” and the assurance of salvation.
The security of the believer is the work of God and guarantees that the gift of salvation, once received, is forever and cannot be lost. The security of our salvation in Christ is a biblical truth; a biblical fact than can be proven.
The assurance of salvation is the realization that the believer does possess eternal life. Therefore, our salvation being eternally secure in Christ can be proven, but only the Holy Spirit can give us the assurance of salvation.
If a person simply refuses to believe what the Bible says about the security of the believer, he or she will never experience the assurance of salvation because they are actually blocking the very truth the Holy Spirit is trying to confirm.
Once again we see the powerful impact of Jesus’ words in John 8:32 when He said “you shall know the truth and the truth shall make you free.” Only when we know truth and embrace truth can that very truth make us free. That includes freedom from the fear of losing our salvation.