Haggai is a report on the utterances of the prophet Haggai during the second year of the reign of Darius, king of the Persian Empire, in the postexilic period. The prophet is singularly concerned with the rebuilding of the Temple, which is essential to restoring the nation’s religious purity. Haggai also believes that a great messianic age is at hand.

Haggai 2

2:4 Yet now be strong, O Zerubbabel, saith the LORD; and be strong, O Joshua, son of Josedech, the high priest; and be strong, all ye people of the land, saith the LORD, and work: for I am with you, saith the LORD of hosts: