וַיֹּ֣אמֶר יְהוֹשֻׁ֔עַ גֹּ֛לּוּ אֲבָנִ֥ים גְּדֹל֖וֹת אֶל־פִּ֣י הַמְּעָרָ֑ה וְהַפְקִ֧ידוּ עָלֶ֛יהָ אֲנָשִׁ֖ים לְשָׁמְרָֽם׃
Rashi on Joshua
Roll. Roll large stones to the mouth of the cave.12Rashi explains that the word גָלוּ has the same meaning as גַלגְלוּ which means roll.