John 6:51, 63-64

I am the living bread that came down from heaven. Anyone who eats this bread will live forever; and this bread, which I will offer so the world may live, is my flesh.”

The Spirit alone gives eternal life. Human effort accomplishes nothing. And the very words I have spoken to you are spirit and life. But some of you do not believe me.” (For Jesus knew from the beginning which ones didn’t believe, and he knew who would betray him.)