The dissensions which arose in the first century between the Jewish Christians and the Gentile Christians had only increased with time, and these were among the chief obstacles in the way of uniting Christians and establishing the Catholic church. The composition of Acts was one of the many attempts made toward the close of the second century to heal these dissensions. The author was a man who cared little for either Petrine or Pauline Christianity--little for the so-called truths of Christianity in any form--but a man who cared much for church unity and church power. The book of Acts was little known at first. St. Chrysostom, writing in the fifth century, says: "This book is not so much as known to many. They know neither the book nor by whom it was written." James and Jude. The seven Catholic Epistles, James, First and Second Peter, First, Second, and Third John, and Jude, have been declared spurious or doubtful by eminent Christian scholars in every age of the church. The Fathers were loath to admit them into the Bible, and their right to a place there has always been disputed. James and Jude, the first and the last of these epistles, orthodox Christians believe, were written by James and Jude, the brothers of Jesus, in 62 and 64 A.D. Three leading orthodox authorities, representing the three great divisions of the Christian church, Cajetan of the Roman Catholic church; Lucar of the Greek Catholic church, and Erasmus of the Protestant church, have denied the authenticity of James. Luther himself refused to accept it. He says: "The Epistle of James I account the writing of no apostle." The composition of Jude and Second Peter are both placed in A.D. 64. There is no proof that either was in existence in A.D. 164. It is only necessary to read Jude and the second chapter of Second Peter to see that one borrowed from the other. While most believe that the author of Second Peter used Jude in the construction of his epistle, Luther contends that Jude is the plagiarist. He says: "The epistle of Jude is an abstract or copy of St. Peter's Second" (Preface to Luther's Version). Jude cites as authentic the apocryphal book of Enoch, and the apocryphal story of Michael the archangel contending with Satan for the body of Moses. Origen, Jerome, and others in ancient, and Calvin, Grotius and others in modern times, have doubted its authenticity. Mayerhoff says it was written in the second century to combat the heresies of the Carpocratians. Epistles of Peter. Most Christians contend that the First Epistle of Peter is genuine. Some of the early Christian Fathers, however, rejected it. Irenæus did not place it in his canon. Not until the third century was it accepted as the writing of Peter.