John 6:62-64

EasyEnglish Bible

⁶² Think about this: The Son of Man will go up again to the place where he was before. And you will see him go up. Will you agree to that? ⁶³ It is the Spirit that gives you life. People cannot do that. The words that I have spoken to you come from the Spirit. They give you life. ⁶⁴ But some of you do not believe my message.’

Jesus had known from the beginning which of them would not believe in him. Also, he had always known who would sell him to his enemies.