Angels are spirits, but it is not because they are spirits that they are angels. They become angels when they are sent. For the name angel refers to their office, not their nature. You ask the name of this nature, it is spirit; you ask its office, it is that of an Angel, which is a messenger.
Saint AugustineMy love for you, Lord, is not an uncertain feeling, but a matter of concious certainty. With your word you pierced my heart, and I loved you. But heaven and earth and everything in them on all sides tell me to love you.
Saint AugustineEvery good and true Christian should understand that wherever he may find the truth it is his Lord's.
Saint AugustineWhat then, is correctness of speech but the maintenance of the practice of others, as established by the authority of ancient speakers? But the weaker men are, the more they are troubled by such matters. Their weakness stems from a desire to appear learned, not with a knowledge of things, by which we are edified, but with a knowledge of signs, by which it is difficult not to be puffed up in some way; even a knowledge of things often makes people boastful, unless their necks are held down by the Lord's yoke.
Saint Augustine