וַיִּתְגַּנֵּ֥ב הָעָ֛ם בַּיּ֥וֹם הַה֖וּא לָב֣וֹא הָעִ֑יר כַּאֲשֶׁ֣ר יִתְגַּנֵּ֗ב הָעָם֙ הַנִּכְלָמִ֔ים בְּנוּסָ֖ם בַּמִּלְחָמָֽה׃
And the people got them by stealth that day into the city, as people that are ashamed steal away when they flee in battle.
Read midrashic interpretation of II Samuel 19:4: and classical rabbinic exegesis.