וַיֹּ֡אמֶר עֶבֶד־מֶ֨לֶךְ הַכּוּשִׁ֜י אֶֽל־יִרְמְיָ֗הוּ שִׂ֣ים נָ֠א בְּלוֹאֵ֨י הַסְּחָב֤וֹת וְהַמְּלָחִים֙ תַּ֚חַת אַצִּל֣וֹת יָדֶ֔יךָ מִתַּ֖חַת לַחֲבָלִ֑ים וַיַּ֥עַשׂ יִרְמְיָ֖הוּ כֵּֽן׃
And Ebed-melech the Ethiopian said unto Jeremiah: ‘Put now these worn clouts and rags under thine armholes under the cords.’ And Jeremiah did so.
Read Jewish philosophical commentary on Jeremiah 38:12: and classical philosophical sources.