Aristides of Athens, a Christian philosopher, addressing the emperor Hadrian (or possibly Antoninus Pius) in the second quarter of the 2nd century AD. One of the earliest surviving defenses of the faith: it surveys the gods of the Barbarians, Greeks, and Egyptians, and the Jews, and then describes the Christians and their manner of life. Lost until 1889, when the Syriac version was recovered (the ANF translation); a Greek form survives inside the medieval Legend of Barlaam and Josaphat.
My LORD’s Bible