Understand this: it is only as we know who God is and worship Him in truth, it is only as we are grounded in doctrinal truth about our Creator that we will trust Him as we should. Habakkuk was able to learn and apply the lesson the Lord sought to teach him because he knwe the truth about God. Faith comes by hearing and hearing by the word of God (Rom. 10:17).
What kind of message did Habakkuk have for his nation?
I. Habakkuk's message was a burdensome message. (Hab. 1:1)
For other burdens pronounced by God see Isaiah 15:1; 17:1; 19:1; 21:1; 22:1; 23:1; Nahum 1:1, etc.
II. Habakkuk's message was that of a bruised messenger. (Hab. 1:2)
The prophet simply did not understand how God could allow the sin of his people to seemingly continually go unpunished, and cried out in anguish to a just God.
III. Habakkuk's message was one of condemnation of a broken morality. (Hab. 1:2b-4)