שָׂרֵ֨י יְהוּדָ֜ה וְשָׂרֵ֣י יְרוּשָׁלִַ֗ם הַסָּֽרִסִים֙ וְהַכֹּ֣הֲנִ֔ים וְכֹ֖ל עַ֣ם הָאָ֑רֶץ הָעֹ֣בְרִ֔ים בֵּ֖ין בִּתְרֵ֥י הָעֵֽגֶל׃
the princes of Judah, and the princes of Jerusalem, the officers, and the priests, and all the people of the land, that passed between the parts of the calf; .
Read Jewish philosophy on Jeremiah 34:19: Rambam's Guide for the Perplexed, Saadia Gaon, and classical Jewish philosophical sources, free online.