BIBLE HISTORY DAILY: The Origins of “The Cherry Tree Carol.” How a Christmas carol links the modern Middle East and medieval England (Mary Joan Winn Leith). An English version of a fifth-century Syriac dialogue-hymn came to us via the Crusaders and Mystery Plays, and it survives as a Christmas carol today.
Via John Burger at Aleteia. Cross-file under Syriac Watch and 'Tis the Season.