St. Ambrose of Milan ca. 338-397
For God’s power is to conquer; Scripture conquers for me. Learn, here, too, that Satan transforms himself into an angel of light (2 Cor. 11:14), and from the Holy Scriptures themselves often prepares a snare for the Faithful. Thus he makes heretics, thus he dissipates faith, thus he assails the duties of piety. Therefore, let not a heretic seize you because he can cite some examples from the Scriptures, nor let he who seems learned arrogate them. The devil, too, uses the evidence of the Scriptures (Lk. 4:10-11), yet not in order to teach, but to entrap and deceive. He recognizes one intent on religion, illustrious with virtues, and very powerful with signs and wonders; he sets the snare of bragging, in order to puff up such a man with pride, so that he does not trust in his piety, but trusts in bragging, nor does he impute it to God, but seizes it for himself. (Exposition of St. Luke Bk. IV, 26)