John 6:64-66 New American Standard Bible (NASB)

64. But there are some of you who do not believe." For Jesus knew from the beginning who they were who did not believe, and who it was that would betray Him.

65. And He was saying, "For this reason I have said to you, that no one can come to Me unless it has been granted him from the Father."

66. As a result of this many of His disciples withdrew and were not walking with Him anymore.

John 6