וָאַגִּ֥ד לָכֶ֖ם הַיּ֑וֹם וְלֹ֣א שְׁמַעְתֶּ֗ם בְּקוֹל֙ יְהוָ֣ה אֱלֹֽהֵיכֶ֔ם וּלְכֹ֖ל אֲשֶׁר־שְׁלָחַ֥נִי אֲלֵיכֶֽם׃
and I have this day declared it to you; but ye have not hearkened to the voice of the LORD your God in any thing for which He hath sent me unto you.
Find Talmudic references to Jeremiah 42:21: , passages from the Talmud Bavli and Yerushalmi.