But then the question was if he was ever really saved.
He was helping himself to money from the money bag all along.
So while he walked and fellowshipped with Jesus and heard His teaching and saw the miracles, his heart was not regenerated.
If he thought Jesus was right about being the Messiah, then he was likely in it for himself and what he could get out of it, out of being part of the inner circle.
Jesus knew what Judas was going to do when He picked him. And that’s WHY he picked him.
Lots of people can like church and being with Christians and some, no doubt, go through all the religious activities and motions and say the right words, but are in it for the big fish in a small pond aspect of it.
I don’t know that you can walk away from it.
What are the verses that support that point of view?
If you want to read a good book about the subject, try to find a copy of Once saved, always saved? : a New Testament study of apostasy / Frederick W. Claybrook, Jr.
Paul writes in Hebrews about people leaving the faith, returning to their old religion. Don’t give up. Run the race and finish.
Rev_3:5 The one who overcomes, this one will be clothed in white clothing. And I will not blot out his name out of the Book of Life, but I will confess his name before My Father and before His angels.