1 Samuel 19
Philoxenus of Mabbug
1 Samuel 19:5
And this is also shewn by that which was said by Jonathan to his father, "He hath put himself in thy hands; and he made war and slew the Philistines by the simplicity of David the king." — 13 Ascetic Discourses, Discourse 4 -- On Faith: First Discourse on Simplicity