The book of Habakkuk is a profound and personal dialogue between a prophet and God. Troubled by the unchecked evil in Judah, Habakkuk cries out, “How long, O LORD?” God’s shocking reply—that He will use the even more wicked Babylonians to execute His judgment—drives the prophet to a deeper crisis of faith. How can a holy God use a sinful instrument? God’s second answer forms the book's core: the proud will fall, but “the righteous shall live by his faith.” This principle transforms Habakkuk’s complaint into a magnificent psalm of trust. He concludes not with answers to all his questions, but with a powerful resolve to rejoice in the LORD, the God of his salvation, no matter the circumstances.