If the Word of God is living and powerful, and if the Lord does all things whatsoever he wills; if he said, "Let there be light", and it happened; if he said, "let there be a firmament", and it happened; ...if finally the Word of God himself willingly became man and made flesh for himself out of the most pure and undefiled blood of the holy and ever Virgin, why should he not be capable of making bread his Body and wine and water his Blood?... God said, "This is my Body", and "This is my Blood."
John of DamascusMore John of Damascus quotes
The saints must be honored as friends of Christ and children and heirs of God. Let us carefully observe the manner of life of all the apostles, martyrs, ascetics, and just men who announced the coming of the Lord. And let us emulate their faith, charity, hope, zeal, life, patience under suffering, and perseverance unto death so that we may also share their crowns of glory.
John of Damascus