The Perspicuity and Formal Sufficiency of Scripture
“All things are clear and open that are in the divine Scriptures; the necessary things are all plain. But because ye are hearers for pleasure's sake, for that reason also you seek these things. For tell me, with what pomp of words did Paul speak? and yet he converted the world. Or with what the unlettered Peter? But I know not, you sub the things that are contained in the Scriptures. Why? For are they spoken in Hebrew? Are they in Latin, or in foreign tongues? Are they not in Greek? But they are expressed obscurely, you say: What is it that is obscure? Tell me.”
-John Chrysostom, Homilies on the Second Epistle of Paul to the Thessalonians, Homily 3.