Joshua 4:1 Midrash

וַיְהִי֙ כַּאֲשֶׁר־תַּ֣מּוּ כָל־הַגּ֔וֹי לַעֲב֖וֹר אֶת־הַיַּרְדֵּ֑ן (פ) וַיֹּ֣אמֶר יְהוָ֔ה אֶל־יְהוֹשֻׁ֖עַ לֵאמֹֽר׃

And it came to pass, when all the nation were clean passed over the Jordan, that the LORD spoke unto Joshua, saying:

Read midrashic interpretation of Joshua 4:1: and classical rabbinic exegesis.