Charles Ellicott Commentary Zephaniah 3:8-10

"Therefore wait ye for me, saith Jehovah, until the day that I rise up to the prey; for my determination is to gather the nations, that I may assemble the kingdoms, to pour upon them mine indignation, even all my fierce anger; for all the earth shall be devoured with the fire of my jealousy. For then will I turn to the peoples of a pure language, that they may all call upon the name of Jehovah, to serve him with one consent. From beyond the rivers of Ethiopia my suppliants, even the daughter of my dispersed, shall bring mine offering." — Zephaniah 3:8-10 (ASV)

This is an enlargement of the consolation addressed to the meek of the earth in Zephaniah 2:3, and of the prediction of Zephaniah 2:11. The great day of the Lord, which shall overthrow all that opposes itself to His sovereignty, shall also introduce an extension of religious knowledge to the nations.