הַדָּבָ֞ר אֲשֶׁר־הָיָ֤ה אֶֽל־יִרְמְיָ֙הוּ֙ מֵאֵ֣ת יְהוָ֔ה בשנת [בַּשָּׁנָה֙] הָעֲשִׂרִ֔ית לְצִדְקִיָּ֖הוּ מֶ֣לֶךְ יְהוּדָ֑ה הִ֧יא הַשָּׁנָ֛ה שְׁמֹנֶֽה־עֶשְׂרֵ֥ה שָׁנָ֖ה לִנְבֽוּכַדְרֶאצַּֽר׃
The word that came to Jeremiah from the LORD in the tenth year of Zedekiah king of Judah, which was the eighteenth year of Nebuchadrezzar.
Read midrashic interpretation of Jeremiah 32:1: and classical rabbinic exegesis.