כִּ֤י רְשָׁעִ֨ים ׀ יֹאבֵ֗דוּ וְאֹיְבֵ֣י יְ֭הוָה כִּיקַ֣ר כָּרִ֑ים כָּל֖וּ בֶעָשָׁ֣ן כָּֽלוּ׃
For the wicked shall perish, and the enemies of the LORD shall be as the fat of lambs— They shall pass away in smoke, they shall pass away.
Read halakhic rulings (Jewish law) on Psalms 37:20 from the Mishneh Torah and classical halakhic sources, free online.