Zephaniah was a prophet living in Jerusalem during the reign of King Josiah in the Kingdom of Judah. As the son of Cushi and a descendant of King Hezekiah, he served as a religious reformer who advocated for a return to traditional Yahwism. He is primarily remembered as the author of the Book of Zephaniah, one of the twelve minor prophets, which contains his warnings regarding divine judgment and the importance of repentance.