שמלתך לא בלתה. עַנְנֵי כָבוֹד הָיוּ שָׁפִים בִּכְסוּתָם וּמְגַהֲצִים אוֹתָם כְּמִין כֵּלִים מְגֹהָצִים, וְאַף קְטַנֵּיהֶם כְּמוֹ שֶׁהָיוּ גְדֵלִים הָיָה גָּדֵל לְבוּשָׁן עִמָּהֶם, כַּלְּבוּשׁ הַזֶּה שֶׁל חֹמֶט שֶׁגָּדֵל עִמּוֹ (עי' ילקוט שמעוני תת"ן): שמלתך לא בלתה THY RAIMENT DID NOT WEAR OUT — the clouds of Divine Glory used to rub the dirt off their clothes and bleach them so that they looked like new white articles, and also, their children, as they grew, their clothes grew with them, just like the clothes (shell) of a snail which grows with it (cf. Shir HaShirim Rabbah 4:11; Yalkut Shimoni on Torah 850).
לא בצקה. לֹא נָפְחָה כְּבָצֵק, כְּדֶרֶךְ הוֹלְכֵי יָחֵף שֶׁרַגְלֵיהֶם נְפוּחוֹת: לא בצקה This means: [AND THY FOOT] DID NOT SWELL like dough (בצק), as is usual with those who walk barefoot — that their feet become swollen.