וַיַּחְגְּרוּ֩ שַׂקִּ֨ים בְּמָתְנֵיהֶ֜ם וַחֲבָלִ֣ים בְּרָאשֵׁיהֶ֗ם וַיָּבֹ֙אוּ֙ אֶל־מֶ֣לֶךְ יִשְׂרָאֵ֔ל וַיֹּ֣אמְר֔וּ עַבְדְּךָ֧ בֶן־הֲדַ֛ד אָמַ֖ר תְּחִֽי־נָ֣א נַפְשִׁ֑י וַיֹּ֛אמֶר הַעוֹדֶ֥נּוּ חַ֖י אָחִ֥י הֽוּא׃
So they girded sackcloth on their loins, and put ropes on their heads, and came to the king of Israel, and said: ‘Thy servant Ben-hadad saith: I pray thee, let me live.’ And he said: ‘Is he yet alive? he is my brother.’
Read midrashic interpretation of I Kings 20:32: and classical rabbinic exegesis.