Ephesians is the tenth book of the New Testament. Its authorship has traditionally been attributed to Paul the Apostle but starting in 1792, this has been challenged as Deutero-Pauline, that is, pseudepigrapha written in Paul's name by a later author strongly influenced by Paul's thought, probably "by a loyal disciple to sum up Paul's teaching and to apply it to a new situation fifteen to twenty-five years after the Apostle's death".