וְהִקְרִ֤יחוּ אֵלַ֙יִךְ֙ קָרְחָ֔ה וְחָגְר֖וּ שַׂקִּ֑ים וּבָכ֥וּ אֵלַ֛יִךְ בְּמַר־נֶ֖פֶשׁ מִסְפֵּ֥ד מָֽר׃
And they shall make themselves utterly bald for thee, And gird them with sackcloth, And they shall weep for thee in bitterness of soul With bitter lamentation.
Read halakhic rulings (Jewish law) on Ezekiel 27:31: and classical halakhic sources.