וַיָּב֕וֹא עַ֖ד לִפְנֵ֣י שַֽׁעַר־הַמֶּ֑לֶךְ כִּ֣י אֵ֥ין לָב֛וֹא אֶל־שַׁ֥עַר הַמֶּ֖לֶךְ בִּלְב֥וּשׁ שָֽׂק׃
E andò sin davanti alla porta del re, poiché non è permesso d'entrare nella porta del re in vestimento di sacco.
Jerusalem Talmud Berakhot
It was stated274Tosephta Berakhot 6:19.: Nobody should enter the Temple Mount in shoes, with dust on his feet, or his coins tied up in his head-scarf, or his money belt on him outside. What is the reason? (Eccl. 4:17) “Watch your feet when you go to God’s house.” Rebbi Yose ben Yehudah says (Esth. 4:2): “He came as far as the king’s gate because nobody may enter the king’s gate in sackcloth.” He said, if it is so for a foul smelling drop275The semen from which the king was conceived., so much more for the gate of the Omnipresent!
Berakhot
R. Jose b. Judah says : [This reasoning] is unnecessary ; for it is stated, "For none might enter within the king's gate clothed with sackcloth" (Esther iv. 2) — and is there not here an a fortiori deduction : If it is thus with sackcloth which is not a disgusting thing in the presence of human beings, must not expectoration, which is disgusting in the presence of the supreme King of kings, be all the more prohibited !