Habakkuk was a prophet living about six centuries before the birth of Christ. He despaired as he encountered the continual sin of his people and he wondered why the Lord did not intervene. When he asked God what He was doing (or, in Habakkuk's mind, NOT doing), the Lord responded by saying He was, in fact, active in the situation. Habakkuk was just not able to see all of the plan.
As God unveiled His plans -- which included raising up the wicked Chaldeans to bring judgment against Habakkuk's nation -- the prophet protested. God's ways just did not make sense to him. Ever been there?
After Habakkuk details his thoughts,