Zechariah’s initial prophecy is dated to 520 B.C., the same year as that in which Haggai received the prophetic call. The first eight chapters of the Book of Zechariah contain oracles which certainly belong to him while the last six (sometimes called "Deutero-Zechariah") represent the work of one or more unknown authors. In the prophecies proper to Zechariah eight symbolic visions are recorded, all meant to promote the work of rebuilding the temple and to encourage the returned exiles, especially their leaders, Joshua and Zerubbabel. In the final chapter of this first division Zechariah portrays the messianic future under the figure of a prosperous land to which the nations come in pilgrimage, eager to follow the God of Israel.
The second part of Zechariah is divided into two sections, each with its own introductory title. The first (Zec 9-11) consists of oracles whose historical background, date and authorship are extremely difficult to determine. With Zechariah 9:9 begins the messianic vision of the coming of the Prince of Peace. The verses describing the triumphant appearance of the humble king are taken up by the four Evangelists to describe the entry of Christ into Jerusalem on Palm Sunday. Zec 12 is introduced by an oracle proclaiming the victory of God’s people over the heathen. The prophecy closes by describing in apocalyptic imagery, the final assault of the enemy on Jerusalem, after which the messianic age begins.