The "Kings of Judah" refers to the rulers of the ancient kingdom of Judah, which existed after the division of the united kingdom of Israel. This kingdom was established around 931 BCE and lasted until the Babylonian conquest in 586 BCE. Notable kings include Hezekiah, known for his religious reforms, and Josiah, who rediscovered the Book of the Law. Judah's kings were often evaluated based on their adherence to the worship of Yahweh and their efforts to eliminate idol worship. The lineage of these kings is traced back to David, making them part of the Davidic line, which held significant importance in Jewish history.