Jer 38:6

וַיִּקְח֣וּ אֶֽת־יִרְמְיָ֗הוּ וַיַּשְׁלִ֨כוּ אֹת֜וֹ אֶל־הַבּ֣וֹר מַלְכִּיָּ֣הוּ בֶן־הַמֶּ֗לֶךְ אֲשֶׁר֙ בַּחֲצַ֣ר הַמַּטָּרָ֔ה וַיְשַׁלְּח֥וּ אֶֽת־יִרְמְיָ֖הוּ בַּחֲבָלִ֑ים וּבַבּ֤וֹר אֵֽין־מַ֨יִם֙ כִּ֣י אִם־טִ֔יט וַיִּטְבַּ֥ע יִרְמְיָ֖הוּ בַּטִּֽיט׃ ס

So they took Jeremiah and dropped him into the cistern of Malchiah, the king’s son, which was in the courtyard of the guard. They lowered Jeremiah with ropes into the cistern, which had no water but only mud, and Jeremiah sank down into the mud.