Note 10 at Jn. 6:57: Once again, these Jews had their minds limited to the physical realm (Rom. 8:5-7; 1 Cor. 2:14). They thought that Jesus was speaking of cannibalism. However, as can be clearly seen by Jesus' later explanation at the institution of the Lord's supper (Mt. 26:26-28; Mk. 14:22-24; Lk. 22:19-20), Jesus was speaking of the spiritual man. Just as our physical man receives life from the food he eats, so the spiritual man receives life as he partakes of Jesus, the life of men (Jn. 1:4; 10:10; 14:6) or the "bread of life" (v. 48). Jesus stated plainly in verse 63 that the words He was speaking were spiritual--not physical.