Assemanni (Bibliot. Orient. tom. ii. p. 10 - 46) and La Croze (Christianisme d'Ethiopie, p. 36 - 40) will supply the history of Xenaias, or Philoxenus, bishop of Mabug, or Hierapolis, in Syria. He was a perfect master of the Syriac language, and the author or editor of a version of the New Testament.