Tractates on the Gospel of John

¹¹ “I am,” says He, “the bread of life.” And what was the source of their pride? “Your fathers,” says He, “did eat manha in the wilderness, and are dead.” What is it whereof you are proud? “They ate manna, and are dead.” Why they ate and are dead? Because they believed that which they saw; what they saw not, they did not understand. Therefore were they “your” fathers, because you are like them. For so far, my brethren, as relates to this visible corporeal death, do not we too die who eat the bread that comes down from heaven?

They died just as we shall die, so far, as I said, as relates to the visible and carnal death of this body. But so far as relates to that death, concerning which the Lord warns us by fear, and in which their fathers died: Moses ate manna, Aaron ate manna, Phinehas ate manna, and many ate manna, who were pleasing to the Lord, and they are not dead. Why? Because they understood the visible food spiritually, hungered spiritually, tasted spiritually, that they might be filled spiritually.

For even we at this day receive visible food: but the sacrament is one thing, the virtue of the sacrament another. How many do receive at the altar and die, and die indeed by receiving? Whence the apostle says, “Eats and drinks judgment to himself.” For it was not the mouthful given by the Lord that was the poison to Judas. And yet he took it; and when he took it, the enemy entered into him: not because he received an evil thing, but because he being evil received a good thing in an evil way.

See ye then, brethren, that you eat the heavenly bread in a spiritual sense; bring innocence to the altar. Though your sins are daily, at least let them not be deadly. Before ye approach the altar, consider well what you are to say: “Forgive us our debts, even as we forgive our debtors.” You forgive, it shall be forgiven you: approach in peace, it is bread, not poison. But see whether you forgive, for if you do not forgive, you lie, and lie to Him whom you can not deceive. You can lie to God, but you can not deceive God.

He knows what you do. He sees you within, examines you within, inspects within, judges within, and within He either condemns or crowns. But the fathers of these Jews were evil fathers of evil sons, unbelieving fathers of unbelieving sons, murmuring fathers of murmurers. For in no other thing is that people said to have offended the Lord more than in murmuring against God. And for that reason, the Lord, willing to show those men to be the children of such murmurers, thus begins His address to them: “Why murmur ye among yourselves,” ye murmurers, children of murmurers? Your fathers did eat manna, and are dead; not because manna was an evil thing, but because they ate it in an evil manner.