“And the Word became flesh. . . . [Jesus said] My flesh is true food, and My blood is true drink. He who eats My flesh and drinks My blood abides in Me, and I in Him.” John 1:14; 6:55-56)
The Eternal Son took on human nature, but more than that, took on flesh, dilapidated human nature, so that He could restore it. He entered fully into the world of sin and death so that He could bring life and righteousness. Light entered the darkness so that darkness could be turned to light.
And now Jesus tells us that this flesh that He took on has become food, food that gives life, food that binds Him to us and us to Him. The bread on this table is not another incarnation of Jesus. It would be a sin, and a grievous one, if we were to bow down and worship this bread in the way the wise men bowed down to worship the infant Jesus. But through this bread we do feed on Jesus, the living and life-giving Incarnate Son of God.
Jesus is the bread that came down from heaven: He who eats and drinks of Jesus has eternal life, and Jesus will raise you up on the last day.
—Peter Leithart (blogpost)