John 6:60-66
60Therefore many of His adisciples, when they heard this said, “bThis is a difficult statement; who can listen to it?” 61But Jesus, aknowing in Himself that His disciples were grumbling at this, said to them, “Does this bcause you to stumble? 62“What then if you see athe Son of Man bascending to where He was before? 63“aThe Spirit is the One who gives life; the flesh profits nothing; bthe words that I have spoken to you are spirit and are life. 64“But there are asome of you who do not believe.” For Jesus bknew from the beginning who they were who did not believe, and cwho it was that would 1betray Him. 65And He was saying, “For this reason I have asaid to you, that no one can come to Me unless bit has been granted him from the Father.”