Anyone found obeying John 14:22-24 (KJV)
[SUP]22 [/SUP] Judas saith unto him, not Iscariot, Lord, how is it that thou wilt manifest thyself unto us, and not unto the world?
[SUP]23 [/SUP] Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him.
[SUP]24 [/SUP] He that loveth me not keepeth not my sayings: and the word which ye hear is not mine, but the Father's which sent me.
shall be saved.
Jesus made it very simple with his earliest sermon. Mark 1:14-15 (KJV)
[SUP]14 [/SUP] Now after that John was put in prison, Jesus came into Galilee, preaching the gospel of the kingdom of God,
[SUP]15 [/SUP] And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.
There is no other way to eternal life. That way must be held dear in us to our last day. Supreme absurdity is to trust in one's own interpretation of that, embracing it a while, then abandoning the way. Some do it. Whether they ever really repented and or believed isn't a question addressed by scriptures. Living out a life omitting God's requirements will be evidence a person didn't value the way of Christ, though held some lesser belief. Judas was called to apostleship, was sent out, ministered side by side with the other 11, took part in miracles, then cast it all away. He heard all of Jesus' preaching, witnessed the life of Jesus day by day following him, then rejected it all. Matthew 26:24-25 (KJV)
[SUP]24 [/SUP] The Son of man goeth as it is written of him: but woe unto that man by whom the Son of man is betrayed! it had been good for that man if he had not been born.
[SUP]25 [/SUP] Then Judas, which betrayed him, answered and said, Master, is it I? He said unto him, Thou hast said.
None will enter in by their own concepts of the truth and the way of Christ. So it is that one is likely to "lose" a salvation based on untruth, which is very easily discarded for a very low price.
Our salvation isn't based on our sinlessness. It is based on our position in Christ, righteousness by faith believing the gospel, not opposing or betraying it.