Jeremiah 13:2 Midrash

וָאֶקְנֶ֥ה אֶת־הָאֵז֖וֹר כִּדְבַ֣ר יְהוָ֑ה וָאָשִׂ֖ם עַל־מָתְנָֽי׃ (ס)

So I got a girdle according to the word of the LORD, and put it upon my loins.

Read midrashic interpretation of Jeremiah 13:2: and classical rabbinic exegesis.