Zechariah is a book of prophecies of a contemporary of Haggai. Zechariah urges the people to rebuild the Temple for he too believes in the imminent coming of the messianic kingdom. Both Zechariah and Haggai are concerned with the messianic hope and establishing Judah’s role in the fulfillment of that glorious hope.

Zechariah 4

4:6 Then he answered and spake unto me, saying, This is the word of the LORD unto Zerubbabel, saying, Not by might, nor by power, but by my spirit, saith the LORD of hosts.