הַיְשֻׁלַּ֤ם תַּֽחַת־טוֹבָה֙ רָעָ֔ה כִּֽי־כָר֥וּ שׁוּחָ֖ה לְנַפְשִׁ֑י זְכֹ֣ר ׀ עָמְדִ֣י לְפָנֶ֗יךָ לְדַבֵּ֤ר עֲלֵיהֶם֙ טוֹבָ֔ה לְהָשִׁ֥יב אֶת־חֲמָתְךָ֖ מֵהֶֽם׃
Shall evil be recompensed for good? For they have digged a pit for my soul. Remember how I stood before Thee To speak good for them, To turn away Thy wrath from them.
Read halakhic rulings (Jewish law) on Jeremiah 18:20: and classical halakhic sources.