Recently, scholars of early Christianity have become interested in the ways Epicureans held their school together, especially Epicurus’ use of letters, many of which explained points of doctrine and served as epitomes of his major works. These scholars have related Philodemus’ remarks on the conduct of an Epicurean school and the relations between more advanced and less experienced members, especially in his book On Frank Criticism, to the work of the Apostle Paul and his pastoral Epistles (cf. Glad 2004).