Zephaniah 3:8-9

8Therefore wait ye for me, saith Jehovah, until the day that I rise up to the prey; for my determination is to assemble the nations, that I may gather the kingdoms together, to pour upon them mine indignation, — all my fierce anger: for all the earth shall be devoured with the fire of my jealousy.

9For then will I turn to the peoples a pure language, that they may all call upon the name of Jehovah, to serve him with one consent.