וַיֹּאמֶר֩ שַׂר־צְבָ֨א יְהוָ֜ה אֶל־יְהוֹשֻׁ֗עַ שַׁל־נַֽעַלְךָ֙ מֵעַ֣ל רַגְלֶ֔ךָ כִּ֣י הַמָּק֗וֹם אֲשֶׁ֥ר אַתָּ֛ה עֹמֵ֥ד עָלָ֖יו קֹ֣דֶשׁ ה֑וּא וַיַּ֥עַשׂ יְהוֹשֻׁ֖עַ כֵּֽן׃
And the captain of the LORD’S host said unto Joshua: ‘Put off thy shoe from off thy foot; for the place whereon thou standest is holy.’ And Joshua did so.
Exodus
He [God] said, “Do not come any closer. Take your shoes off your feet, because the place upon which you are standing is holy ground.”