All we know if an angel is that it is incorporeal, immaterial, and only by comparing it with God-who is incomparable-can we see that it has some density and body after all, since in reality only God is truly immaterial and incorporeal.
John of DamascusHow can this come about?" Mary asked. "The Holy Spirit will come upon you," the angel answered, "and the power of the Most High will cover you with its shadow." And now you are the one who puts the question: "How can bread become Christ and wine His Blood?" I answer: "The power of the Holy Spirit will be at work to give us a marvel which surpasses understanding.
John of DamascusI do not worship matter, I worship the God of matter, who became matter for my sake and deigned to inhabit matter, who worked out my salvation through matter. I will not cease from honoring that matter which works for my salvation. I venerate it, though not as God.
John of DamascusIf a pagan asks you to show him your faith, take him into church and place him before the icons.
John of DamascusHe who does not believe according to the tradition of the Catholic Church is an unbeliever.
John of DamascusGluttony should be destroyed by self-control; unchastity by desire for God and longing for the blessings held in store; avarice by compassion for the poor; anger by goodwill and love for all men; worldly dejection by spiritual joy; listlessness by patience, perseverance and offering thanks to God; self-esteem by doing good in secret and by praying constantly with a contrite heart; and pride by not judging or despising anyone in the manner of the boastful Pharisee (cf. Lk. 18:11-12), and by considering oneself the least of all men.
John of Damascus