John J. Collins
Zephaniah prophesied a little earlier than Nahum and Habakkuk in the reign of Josiah, the king who instituted the Deuteronomic reform (2 Kgs 22–23 ). One of his themes concerns idolatry ( 1, 4–6 ). He may have been active before the reform, but Josiah was not very successful in his attempt to stamp out foreign cults in any case. Indeed, the prophet inveighs against the king's sons for adopting foreign customs ( 1, 8 ). Zephaniah was contemporary with the early career of Jeremiah. The surviving oracles are almost entirely taken up with the proclamation of the Day of the Lord.