Notably, the prophet Isaiah connects this period of divine joy with the new creation (Isaiah 65:17–19). The New Testament identifies this period “as beginning at Christ’s first coming (2 Corinthians 5:17; Galatians 6:15), and culminating with the descent of the heavenly Jerusalem to earth (Galatians 6:15; Galatians 6:15). Zephaniah is most likely referring to this same already-but-not-yet reality."1
17 The LORD your God is in your midst, a mighty one who will save; he will rejoice over you with gladness; he will quiet you by his love; he will exult over you with loud singing.