Zephaniah

Early: before the reform

The idolatry condemned in 1:4–6 is live and public: Baal worship, the idolatrous priests, the host of heaven on the housetops, oaths sworn half to the LORD and half to Milcom. That is the religious landscape 2 Kings 23 describes Josiah dismantling in 622 BC, which reads most naturally as a description of conditions the reform had not yet reached, making Zephaniah one of the voices that helped provoke it.

Late: after the reform

Josiah's reform was royal policy, and royal policy does not convert a nation's heart. Practices suppressed at the official level can persist privately or relapse once enforcement slackens, so 1:4–6 could equally describe residual or returning syncretism, delivered as ongoing warning to a people whose reform was real on paper and thin underneath.

For

The genealogy in 1:1 runs four generations, unique among the Twelve's superscriptions. Hosea and Joel give only a father's name; Amos names no father at all, only his trade and his town; and even Zechariah, the next-longest, stops at two generations. The deliberate length invites the line to be traced, and “Hizkiah” is spelled identically to King Hezekiah's name elsewhere. If so, Zephaniah is a great-great-grandson of Hezekiah and a distant royal cousin of Josiah, which would explain his access to prophesy directly against the royal house and priesthood with such specificity (1:8–9; 3:3–4).

Against

“Hizkiah” was not an uncommon name in Judah; the text never calls him “king,” as it typically would when identifying royalty (contrast 2 Kings 18:1's full royal formula), and four generations back from Josiah's reign fits the chronology loosely but not exactly for Hezekiah's actual lifespan. Several conservative commentators, Keil & Delitzsch among them, remain agnostic.

For

“Cushi” is the same word used elsewhere as an ethnic designation, Ebed-melech “the Cushite” (Jer 38:7), and could mark African ancestry in Zephaniah's paternal line.

Against

Cushi also functioned as a plain personal name inside Judah, unconnected to ethnicity, Jer 36:14 names Jehudi son of Nethaniah son of Shelemiah son of Cushi, a Cushi sitting inside a Judahite genealogy, and the line Zephaniah himself gives traces back to a Judahite name (Hizkiah), which sits awkwardly with reading his father's name as a foreign-origin marker for the family as a whole. On this reading Cushi is likely a personal name rather than an ethnic label.

For a near horizon

Chapter 2's judgments against Philistia, Moab/Ammon, Cush, and Assyria were substantially fulfilled in datable near-term history, Nineveh fell in 612 BC, Jerusalem itself to Babylon in 586 BC, matching 1:2–18's threats against Judah directly.

For a still-future horizon

1:2–3's cosmic, all-creation scope: “I will utterly consume all things… man and beast… birds… fish”, outstrips any single historical judgment and reads most naturally alongside the New Testament's eschatological texts (2 Pet 3; Rev 6). 3:9–20's promise of universal pure worship and regathering likewise outstrips any post-exilic fulfillment on record.