This verse here....it's not a question about salvation but one of leadership. He believed enough to become a disciple but he wasn't cut out for a leadership role. That's what Jesus was saying by that. It's one of those Anthropologie thingies. Understanding the terms "called" and "chosen" as a Jewish person would understand them. Easiest way to understand it is their military practices....many men were called to fight and be a part of the military (and they all usually went) but few were chosen to be Generals.
Are you sure though ? let’s examine it closer together
And he saith unto him, Friend, how camest thou in hither not having a wedding garment? And he was speechless. Then said the king to the servants, Bind him hand and foot, and take him away, and cast him into outer darkness; there shall be weeping and gnashing of teeth. For many are called, but few are chosen.”
Matthew 22:12-14
I would humbly submit to you that it doesn’t have anything to do with leadership but much to about this place of weeping , gnashing of teeth , where thier worm dieth not and thier fire never quenched
it seems (just to me ) as if it ties into salvstion and Gods kingdom and if examined closer it ties to this other place
“The kingdom of heaven is like unto a certain king, which made a marriage for his son,”
Matthew 22:2
“And he saith unto me, Write, Blessed are they which are called unto the marriage supper of the Lamb. And he saith unto me, These are the true sayings of God.”
Revelation 19:9 KJV
“It is written in the prophets, And they shall be all taught of God. Every man therefore that hath heard, and hath learned of the Father, cometh unto me.”
John 6:45 KJV
“For I have not spoken of myself; but the Father which sent me, he gave me a commandment, what I should say, and what I should speak. And I know that his commandment is life everlasting: whatsoever I speak therefore, even as the Father said unto me, so I speak.”
John 12:49-50 KJV
it seems like salvstion is always tied in somewhere
“Verily, verily, I say unto you, He that heareth my word, and believeth on him that sent me, hath everlasting life, and shall not come into condemnation; but is passed from death unto life.”
John 5:24
“And he said unto them, Go ye into all the world, and preach the gospel to every creature. He that believeth and is baptized shall be saved; but he that believeth not shall be damned.”
Mark 16:15-16 KJV