John 6:64-66

Young's Literal Translation

⁶⁴ but there are certain of you who do not believe;' for Jesus had known from the beginning who they are who are not believing, and who is he who will deliver him up,

⁶⁵ and he said, `Because of this I have said to you -- No one is able to come unto me, if it may not have been given him from my Father.'

⁶⁶ From this [time] many of his disciples went away backward, and were no more walking with him,