Although Zephaniah has many sub-themes, the great theme of Zephaniah is the coming Day of Yahweh, the Great Tribulation and judgment that will come on the earth. Zephaniah 1:2 speaks of this Day with hyperbolic emphasis. Zephaniah also mentions the blessings experienced by Israel in the Millennial Kingdom which follows after the Tribulation (cp. Zeph. 3:19-20).