"Yet there are some of you who do not believe.” For Jesus had known from the
beginning which of them did not believe and who would betray him. John 6:64
Well done. You've taken the bait of contextual error.
Jhn 6:60
Many therefore of his disciples, when they had heard this, said, This is an hard saying; who can hear it? When Jesus knew in himself that his disciples murmured at it, he said unto them, Doth this offend you?
Jhn 6:65
And he said, Therefore said I unto you, that no man can come unto me, except it were given unto him of my Father. From that time many of his disciples went back, and walked no more with him.
The charge of unbelief is only made to these disciples, that were offended at Jesus' words, and turned back from following Him.
John 6:67
Then said Jesus unto the twelve, Will ye also go away? Then Simon Peter answered him, Lord, to whom shall we go? thou hast the words of eternal life.
All the twelve apostles remained with Jesus at that time, and were not counted among those disciples that betrayed Jesus by unbelief.
Jhn 6:70
Jesus answered them, Have not I chosen you twelve, and one of you is a devil? He spake of Judas Iscariot the son of Simon: for he it was that should betray him, being one of the twelve.
Here only is Judas specifically recorded as a devil, while he remained among the believing chosen twelve. Judas did not betray Jesus at that time by unbelief with them that turned back, but rather his betrayal would later be by handing Jesus over to His accusers.
Jhn 13:1
Now before the feast of the passover, when Jesus knew that his hour was come that he should depart out of this world unto the Father, having loved his own which were in the world, he loved them unto the end. And supper being ended, the devil having now put into the heart of Judas Iscariot, Simon's son, to betray him; He riseth from supper, and laid aside his garments; and took a towel, and girded himself.
Jhn 13:10
Jesus saith to him, He that is washed needeth not save to wash his feet, but is clean every whit: and ye are clean, but not all.
Once again, this is specifically among the 12 apostles alone before the last supper, where Judas was judged unclean after the foot washing. Only at this time does the devil put it in his heart to betray Jesus to His accusers, because like King Saul, he chose his own things rather than the Lord's.
Judas was no more an unbeliever, than was Peter when rebuked as a devil himself for choosing the things of men, rather than of God:
Mar 8:33
But when he had turned about and looked on his disciples, he rebuked Peter, saying, Get thee behind me, Satan: for thou savourest not the things that be of God, but the things that be of men.
Ah, I see you think someone who believed in Jesus betrayed Him. I do find that odd.
And I see you neglected Scriptural context, in order to confirm your own assumption.
I do find that every committed OSAS Christian, that seeks their justification by their faith alone apart from their works, is always willing to take Scripture out of context.
Though you have been reasonably fair with the Scriptures, yet even here you are to rash to not study context first. And though this case is not as openly brash as most others, there is never any excuse to do so.
2Ti 2:15
Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly
If the angels that have seen God's face in heaven, can sin and become devils that believe in God and Christ, then men also that have not seen God, certainly can believe and sin as devils. Adam being the first example of a believer on earth, that transgressed the Lord's commandment and died to God.
OSAS election by only believing in God, apart from works, is simply the oldest lie of the first angel that sinned, in order to justify devils and transgressors by their faith alone in Christ:
Gen 3:4
And the serpent said unto the woman, Ye shall not surely die: For God doth know that in the day ye eat thereof, then your eyes shall be opened, and ye shall be as gods, knowing good and evil.
