Just for the record, I don't believe that Judas was ever saved. I think I posted somewhere that I believe him to be the prime example of the tare among the wheat. I thought I had posted that in this thread, but perhaps it was another. Sorry if I wasn't clear about that. My main point in starting this thread was not so much to seek an answer to a question that I was in doubt in, but rather starting a discussion on Judas, as his testimony provokes questions such as OSAS and predestination.
Judas was one of the 12, called an apostle by Christ. He cast out demons, he healed the sick, he walked with Christ. I even believe that he 'believed' in Christ, that Christ was the Son of God and the Messiah who would bring the Kingdom of God to the world. But, as jg points out, even the demons believe that. I do not see that Judas ever was regenerated by the Holy Spirit.
Now, to me, whether any of the disciples were regenerated prior to John 20:22 is rather a moot point. Those with faith were every bit as 'saved' prior to Jesus' death on the cross as those with faith are 'saved' now.
We need to remember what 'saved' is. It's a verb, an action. Whose action? Not ours surely but God's. What action? To deliever one from the consequenses of one's sin. What consequense? The eternal death and separation from God, namely hell.
Those with faith in God prior to Christ's death on the cross did not suffer eternal damnation upon death. Therefore they were 'saved' to eternal life. Whether they spent time in what can be refered to as some sort of spiritual green room called 'Abraham's Bosom', or in Paradise itself, is also a moot point. They in no way suffered the consequense of sin that is eternal torment.
I really don't like the term Once Saved Always Saved, because I think it ignores some very real warnings from God about taking our salvation for granted.
But, if one wants to believe that Judas Iscariot truly was regenerated, then he is either forgiven and in Paradise, or we do lose our salvation.
If Judas was never saved, then we need to come to grips with the fact not all who follow God are truly His. Not everyone who says "Lord, Lord" will be saved.
To me, the lesson to be learned from Judas is not so much will the regenerated ever lose salvation, but a cautionary example of how we proceed upon our own walk. One can walk with the Lord, be given gifts and abilities by the Lord, exercise these gifts and abilities in His name, and yet still fail to achieve the prize.
Paul himself stated that he didn't regard himself as already holding this prize of being resurrected like our Lord into eternal life. But it was something that he pressed on towards. Judas didn't press on towards that goal, if he ever aspired to that goal in the first place. It's a good arguement that some make, that Judas was predestined to do exactly what he did, that he was a vessel of wrath, prepared for destruction. Romans 9:22