Charles Ellicott Commentary Zephaniah 2:1-3

"Gather yourselves together, yea, gather together, O nation that hath no shame; before the decree bring forth, [before] the day pass as the chaff, before the fierce anger of Jehovah come upon you, before the day of Jehovah`s anger come upon you. Seek ye Jehovah, all ye meek of the earth, that have kept his ordinances; seek righteousness, seek meekness: it may be ye will be hid in the day of Jehovah`s anger." — Zephaniah 2:1-3 (ASV)

An exhortation to seek God before His day of vengeance is revealed.