I do think, but you do not get the concept. The scripture say they were saved, but then turned away from Christ.
For instance: A person can accept Christ and repent of their sins, but later in life for some reason stop believing in Christ. They then fall away and lose that salvation cause they start denying Jesus.
Plus like I said you have to think spiritually about what the scripture says about a willful sinner. A willful sinner is one who is not sorry, does not feel the conviction, and in turn does not repent cause they feel they are not doing anything wrong. There has been cases and still are cases of people who gave their life to Christ, but then turned away.
Jesus does not pick or chose who gets the gift, He offered it to all. We then chose to accept it or not, and that acceptance can change at any time and has changed in peoples life over the years. Which is evident in such cases like a preacher who has given his life to God, and then because of tragic death of a loved one ends up turning his back on God and not believing He exists.
I will continue to believe in Jesus Christ as my lord and savior, and through that belief I will always believe in what He said.....you can fall away......the anti-Christ will even fool some of the elect.