"... and the disciples were first called Christians in Antioch." Acts 11:26

"Each one of us carries a burden of sins, errors, sorrows, misfortunes; and yet, we should not be subjected to all of this, since each of us has his own guardian angel. Why, then, does such a situation exist? The angels, of course, would never allow it, were it not our own fault. And if they allow it, it is either because we make ourselves inaccessible to angelic guidance, or because by our contrariness we destroy and repel all the angels’ efforts to assist us in doing good."