Haggai is the second shortest book of the Old Testament, after Obadiah. The writer's literary style is simple and direct. The book is a mixture of prose and poetry, the introductory sections being prose and the oracles poetry. The book contains four short messages that Haggai preached to the returned Jews during one year, 520 B.C. Haggai was clearly aware that the messages he preached to the Israelites were from God. He affirmed their divine authority 25 times. In contrast to almost all the writing prophets, Haggai was successful in that the people to whom he preached listened to him and obeyed his exhortations.7
"The truth is that few prophets have succeeded in packing into such brief compass so much spiritual common sense as Haggai did."8
"Interestingly, Haggai's message has none of the elements so characteristic of the other biblical prophets. For instance, he wrote no diatribe against idolatry. He said nothing of social ills and abuses of the legal system, nor did he preach against adultery or syncretism. His one theme was rebuilding God's temple."9
