. וְאָמַר רַבִּי יְהוֹשֻׁעַ בֶּן לֵוִי: כׇּל דִּיבּוּר וְדִיבּוּר שֶׁיָּצָא מִפִּי הַקָּדוֹשׁ בָּרוּךְ הוּא חָזְרוּ יִשְׂרָאֵל לַאֲחוֹרֵיהֶן שְׁנֵים עָשָׂר מִיל וְהָיוּ מַלְאֲכֵי הַשָּׁרֵת מְדַדִּין אוֹתָן, שֶׁנֶּאֱמַר: ״מַלְאֲכֵי צְבָאוֹת יִדֹּדוּן יִדֹּדוּן״ — אַל תִּיקְרֵי ״יִדֹּדוּן״, אֶלָּא ״יְדַדּוּן״.
And Rabbi Yehoshua ben Levi said: With each and every utterance that emerged from the mouth of the Holy One, Blessed be He, the Jewish people retreated in fear twelve mil, and the ministering angels walked them back toward the mountain, as it is stated: “The hosts of angels will scatter [yidodun]” (Psalms 68:13). Do not read the word as yidodun, meaning scattered; rather, read it as yedadun, they walked them.
12 Mil - this is the size of the camp, and those closest who fall backwards from fear to the edge of the camp.
Walk them back - helping them come closer slowly due to their weakness, like a mother helping her child when learning to way.