His letters were quoted extensively by the early Church Fathers. Later efforts to question their authenticity was introduced, but due to the scholarly work of [[James Ussher]] and [[J.B. Lightfoot]], they are now accepted as genuine.<ref>Who’s Who in Christianity, Lavinia Coh-Sherbok, 1998</ref> | His letters were quoted extensively by the early Church Fathers. Later efforts to question their authenticity was introduced, but due to the scholarly work of [[James Ussher]] and [[J.B. Lightfoot]], they are now accepted as genuine.<ref>Who’s Who in Christianity, Lavinia Coh-Sherbok, 1998</ref> |