Reason #8: They have not fully reckoned on why Jesus died on the cross in the first place.
Sometimes, the reason why we doubt our salvation is simply weak theology. We have not developed a mature personal understanding of why Jesus died on the cross. In Romans 4:25, the Apostle Paul tells us Jesus “was delivered up because of our offenses, and was raised because of our justification.” In Romans 5:8 he wrote, But God demonstrates His own love toward us, in that while we were still sinners, Christ died for us. In Matthew 9:13 Jesus said, “I did not come to call the righteous, but sinners, to repentance.”
The truth of the matter is Jesus came for the very purpose of providing the only way for our salvation. In John 10:10 Jesus said, “I have come that they may have life, and that they may have it more abundantly” . The fact is we need to personally embrace the truth that He came for this purpose. In John 14:6 Jesus said, “I am the way, the truth, and the life. No one comes to the Father except through Me.” Since He is the way, the truth, and the life, He is the only way of entering into an eternal relationship with God here and now and entering heaven when this life is over. To consider the depth of this truth is powerful in our quest for assurance of salvation.