שְׂאוּ־נֵ֣ס צִיּ֔וֹנָה הָעִ֖יזוּ אַֽל־תַּעֲמֹ֑דוּ כִּ֣י רָעָ֗ה אָנֹכִ֛י מֵבִ֥יא מִצָּפ֖וֹן וְשֶׁ֥בֶר גָּדֽוֹל׃
Set up a standard toward Zion; put yourselves under covert, stay not; for I will bring evil from the north, and a great destruction.
Read halakhic rulings (Jewish law) on Jeremiah 4:6: and classical halakhic sources.