c. 386–397 · John Chrysostom, Homilies on 2 Timothy (In epistulam ii ad Timotheum homiliae 1-10) 9
All what Scripture? all that sacred writing, he means, of which I was speaking. This is said of what he was discoursing of; about which he said, “From a child thou hast known the holy Scriptures.” All such, then, “is given by inspiration of God”; therefore, he means, do not doubt; and it is “profitable for doctrine, for reproof, for correction, for instruction in righteousness: that the man of God may be perfect, thoroughly furnished unto all good works.” “For doctrine.” For thence we shall know, whether we ought to learn or to be ignorant of anything. And thence we may disprove what is false, thence we may be corrected and brought to a right mind, may be comforted and consoled, and if anything is deficient, we may have it added to us.