Yes, it is true that the prophet Habakkuk prophesied in Judah after the Babylonian invasion and warned that the Lord had sent the Babylonians to punish his people. In the book of Habakkuk, the prophet raises questions about the Lord's justice and asks why he allows the Babylonians to oppress his people. The Lord responds by telling Habakkuk that he is using the Babylonians as a tool of punishment for the sins of the people of Judah. The Lord then tells Habakkuk to wait patiently for the punishment to be completed, and to trust in him.