Lucian is also commonly credited with a critical recension of the text of the Septuagint and the Greek New Testament, which was later used by Chrysostom and the later Greek fathers, and which lies at the basis of the textus receptus; however, the theory of Lucian Recension has not been proven, nor has any historical or archeological evidence been uncovered. Rosalie Levy's book states, "He purged both the Old and New Testaments of errors that had crept in by the inaccuracy of transcribers or the malice of heretics."