Haggai - One of two (along with Zechariah) post-exilic prophets who encouraged his people to rebuild the temple.

"Then the word of the Lord came a second time to Haggai on the twenty-fourth day of the month, saying, 'Speak to Zerubbabel governor of Judah, saying, "I am going to shake the heavens and the earth.  I will overthrow the thrones of kingdoms and destroy the power of the kingdoms of the nations; and I will overthrow the chariots and their riders, and the horses and their riders will go down, everyone by the sword to another."'" (Haggai 2:20-22, NASB)