אַל־יְהִי־ל֭וֹ מֹשֵׁ֣ךְ חָ֑סֶד וְֽאַל־יְהִ֥י ח֝וֹנֵ֗ן לִיתוֹמָֽיו׃
Let there be none to extend kindness unto him; Neither let there be any to be gracious unto his fatherless children.
Read halakhic rulings (Jewish law) on Psalms 109:12 from the Mishneh Torah and classical halakhic sources, free online.