וְכָל־הָאָ֗רֶץ בּוֹכִים֙ ק֣וֹל גָּד֔וֹל וְכָל־הָעָ֖ם עֹֽבְרִ֑ים וְהַמֶּ֗לֶךְ עֹבֵר֙ בְּנַ֣חַל קִדְר֔וֹן וְכָל־הָעָם֙ עֹבְרִ֔ים עַל־פְּנֵי־דֶ֖רֶךְ אֶת־הַמִּדְבָּֽר׃
And all the country wept with a loud voice, as all the people passed over; and as the king passed over the brook Kidron, all the people passed over, toward the way of the wilderness.
Read midrashic interpretation of II Samuel 15:23: and classical rabbinic exegesis.