אַךְ־אֱלֹהִ֗ים יִמְחַץ֮ רֹ֤אשׁ אֹ֫יְבָ֥יו קָדְקֹ֥ד שֵׂעָ֑ר מִ֝תְהַלֵּ֗ךְ בַּאֲשָׁמָֽיו׃
Surely God will smite through the head of His enemies, The hairy scalp of him that goeth about in his guiltiness.
Read halakhic rulings (Jewish law) on Psalms 68:22: and classical halakhic sources.