LeBuick said:
The question is would a saved person deliberately separate themselves from Christ? You said refuse to correct my course, that doesn't sound like one who is fully committed to Christ.
I don't think anyone would just get up one morning and decide they were going to leave the faith and turn back to the world. But life happens to all of us, and each of us makes choices. If one, even one committed to the faith, were to make a small compromise, it could ( and often does) lead to more compromises. Continuing in this fashion, one could eventually find himself far from the path of righteousness and headed for worldly living.
People can become discouraged through many circumstances. A spouse can leave a faithful Christian claiming "unhappiness". It happened to me. It's VERY discouraging!
Was Demas saved? It is said he preferred the Jewish lifestyle which is what he returned to. One can't be a Christian still holding on to Judaism.
I don't think we can prove from the Scriptures what it was about the world that Demas loved, only that he had departed from Paul, "...having loved this present world" (2Tim 4:10).
Demas was with Paul when Paul wrote the letter to the Colossians (Col 4:14), and when he wrote to Philemon, Paul referred to Demas as one of his "fellowlabourers".
I don't believe Paul would have been confused about Demas' being a Christian, do you?
It's the knowledge that a Christian can be lost, suffering even greater punishment than a nonbeliever (2 Pet 2:20-22; Heb 10:26-31), that helps keep me focused on denying the lusts of the flesh and hanging in there.
My personal experience is not my source of authority, I merely use myself as an example of one who is at risk due to unfortunate life experiences.