In the third theorem of his Theologia naturalis Alsted discusses the issue of non-Christian authors and commends their use even for public preaching, though with certain caveats: III. Præclara ethnicorum dicta Theologica ab eis tanquam iniustis possessoribus, in usum nostrum transferenda sunt. Hoc theorema totidem ferme verbis occurrit apud Augustinum lib. 3. de doctrina Christ. […]
