John 6:51 [Jesus said:] "I am the living bread that came down from heaven. If anyone eats of this bread, he will live forever. This bread is my flesh, which I will give for the life of the world." (NIV)
1 John 2:15-17 Do not love the world or anything in the world. If anyone loves the world, the love of the Father is not in him. For everything in the world--the cravings of sinful man, the lust of his eyes and the boasting of what he has and does--comes not from the Father but from the world. The world and its desires pass away, but the man who does the will of God lives forever. (NIV)
"If we are not nourished by the Bread from heaven, we will stuff ourselves with crumbs from the world." Erwin W. Lutzer