12. John 6:54: He who eats my flesh and drinks my blood has life everlasting and I will raise him up at the last day.

John 4:21-24 Jesus said to her, “Woman, believe me, the hour is coming when neither on this mountain, nor in Jerusalem will you worship the Father. You worship what you do not know; we worship what we know, for salvation is from the Jews. But the hour is coming, and is now here, when the true worshippers will worship the Father in spirit and in truth. For the Father also seeks such to worship him. God is a Spirit, and they who worship him must worship in spirit and in truth.

Philippians 3:3 For we are the circumcision, we who serve God in spirit, who glory in Christ Jesus, and have no confidence in the flesh.

In John 3 the Lord spoke of physical birth as a parallel to spiritual birth to Nicodemus. In John 4 He spoke of physical water as a parallel to spiritual water to the woman at the well. In John 6 the Lord again uses a physical example of His flesh as heavenly bread to teach a spiritual principle.

John 6:64 It is the spirit that that gives life; the flesh profits nothing. The words that I have spoken to you are spirit and life.