וְהָיָ֗ה אִֽם־תַּעֲלֶה֙ חֲמַ֣ת הַמֶּ֔לֶךְ וְאָמַ֣ר לְךָ֔ מַדּ֛וּעַ נִגַּשְׁתֶּ֥ם אֶל־הָעִ֖יר לְהִלָּחֵ֑ם הֲל֣וֹא יְדַעְתֶּ֔ם אֵ֥ת אֲשֶׁר־יֹר֖וּ מֵעַ֥ל הַחוֹמָֽה׃
it shall be that, if the king’s wrath arise, and he say unto thee: Wherefore went ye so nigh unto the city to fight? knew ye not that they would shoot from the wall?
Read Midrashic interpretations of II Samuel 11:20: rabbinic exegesis from Bereshit Rabbah, Shemot Rabbah and classical Midrash sources, free.