John 6:54-57

54Whoever eats my flesh and drinks my blood has eternal life, and I will raise them up at the last day. 55For my flesh is real food and my blood is real drink. 56Whoever eats my flesh and drinks my blood remains in me, and I in them. 57Just as the living Father sent me and I live because of the Father, so the one who feeds on me will live because of me.