In Shemos 33:11, the prophet Yehoshua is referred to as Yehoshua bin Nun.
וְדִבֶּ֨ר יְהוָ֤ה אֶל־מֹשֶׁה֙ פָּנִ֣ים אֶל־פָּנִ֔ים כַּאֲשֶׁ֛ר יְדַבֵּ֥ר אִ֖ישׁ אֶל־רֵעֵ֑הוּ וְשָׁב֙ אֶל־הַֽמַּחֲנֶ֔ה וּמְשָׁ֨רְת֜וֹ יְהוֹשֻׁ֤עַ בִּן־נוּן֙ נַ֔עַר לֹ֥א יָמִ֖ישׁ מִתּ֥וֹךְ הָאֹֽהֶל׃ (ס)
Why is specifically Yehoshua (and Kalev Ben Yefunah) referred to with their father's (or grandfather's) name? Why don't we say Moshe ben Amram? Or Aharon ben Amram?