the most truly apocalyptic and eschatological, of all the writings in the Old Testament.… The returned captives from Babylon were feeling disheartened and depressed because Jehovah had not made it possible to restore Zion. Haggai had given them real initiative and the work of rebuilding was begun under him. It was left to Zechariah to complete the structure, and this was his primary work.” While it is apparent that the message of Zechariah does present some difficulties and differences of interpretation,