וַיהוָ֞ה מִצִּיּ֣וֹן יִשְׁאָ֗ג וּמִירוּשָׁלִַ֙ם֙ יִתֵּ֣ן קוֹל֔וֹ וְרָעֲשׁ֖וּ שָׁמַ֣יִם וָאָ֑רֶץ וַֽיהוָה֙ מַֽחֲסֶ֣ה לְעַמּ֔וֹ וּמָע֖וֹז לִבְנֵ֥י יִשְׂרָאֵֽל׃
And the LORD shall roar from Zion, And utter His voice from Jerusalem, And the heavens and the earth shall shake; But the LORD will be a refuge unto His people, And a stronghold to the children of Israel.
Read halakhic rulings (Jewish law) on Joel 4:16: and classical halakhic sources.