EARLIEST CHRISTIAN WRITINGS. Considered the last major Jewish-Christian document, the late-first-century Didache (“Teachings of the Twelve Apostles”) explains ethics and procedures of the early church and portrays Jesus as God’s “Servant.” Disputing Jewish interpretation of the Old Testament and Mosaic Law, the early-second-century Epistle of Barnabas is one of the earliest expressions of gentile Christianity. Moreover, the letter describes Jesus as quasi-divine.