וַיְהִ֣י ׀ כְּכַלֹּת֣וֹ לְדַבֵּ֗ר וְהִנֵּ֤ה בְנֵֽי־הַמֶּ֙לֶךְ֙ בָּ֔אוּ וַיִּשְׂא֥וּ קוֹלָ֖ם וַיִּבְכּ֑וּ וְגַם־הַמֶּ֙לֶךְ֙ וְכָל־עֲבָדָ֔יו בָּכ֕וּ בְּכִ֖י גָּד֥וֹל מְאֹֽד׃
And it came to pass, as soon as he had made an end of speaking, that, behold, the king’s sons came, and lifted up their voice, and wept; and the king also and all his servants wept very sore.
Read midrashic interpretation of II Samuel 13:36: and classical rabbinic exegesis.