Whether the Angels Know the Mysteries of Grace?
Objection 1: It would seem that the angels know mysteries of grace. For, the mystery of the Incarnation is the most excellent of all mysteries. But the angels knew of it from the beginning; for Augustine says (Gen. ad lit. v, 19): "This mystery was hidden in God through the ages, yet so that it was known to the princes and powers in heavenly places." And the Apostle says (1 Tim. 3:16): "That great mystery of godliness appeared unto angels*." [*Vulg.: 'Great is the mystery of godliness, which . . …
Saint Thomas Aquinas—Summa Theologica

Christian Perfection
"Not as though I had already attained, either were already perfect." Phil. 3:12. 1. There is scarce any expression in Holy Writ which has given more offence than this. The word perfect is what many cannot bear. The very sound of it is an abomination to them. And whosoever preaches perfection (as the phrase is,) that is, asserts that it is attainable in this life, runs great hazard of being accounted by them worse than a heathen man or a publican. 2. And hence some have advised, wholly to lay aside …
John Wesley—Sermons on Several Occasions

Homiletical.
Twenty-four homilies on miscellaneous subjects, published under St. Basil's name, are generally accepted as genuine. They are conveniently classified as (i) Dogmatic and Exegetic, (ii) Moral, and (iii) Panegyric. To Class (i) will be referred III. In Illud, Attende tibi ipsi. VI. In Illud, Destruam horrea, etc. IX. In Illud, Quod Deus non est auctor malorum. XII. In principium Proverbiorum. XV. De Fide. XVI. In Illud, In principio erat Verbum. XXIV. Contra Sabellianos et Arium et Anomoeos. …
Basil—Basil: Letters and Select Works