Jamieson, Fausset and Brown on Zephaniah 3:1

CHAPTER 3

Zep 3:1-20. Resumption of the Denunciation of Jerusalem, as Being Unreformed by the Punishment of Other Nations: After Her Chastisement Jehovah Will Interpose for Her against Her Foes; His Worship Shall Flourish in All Lands, Beginning at Jerusalem, Where He Shall Be in the Midst of His People, and Shall Make Them a Praise in All the Earth.

1. filthy--Maurer translates from a different root, "rebellious," "contumacious." But the following term, "polluted," refers rather to her inward moral filth, in spite of her outward ceremonial purity [Calvin]. Grotius says, the Hebrew is used of women who have prostituted their virtue. There is in the Hebrew Moreah; a play on the name Moriah, the hill on which the temple was built; implying the glaring contrast between their filthiness and the holiness of the worship on Moriah in which they professed to have a share.

oppressing--namely, the poor, weak, widows, orphans and strangers (Jr 22:3).