חֲגֽוֹר־חַרְבְּךָ֣ עַל־יָרֵ֣ךְ גִּבּ֑וֹר ה֝וֹדְךָ֗ וַהֲדָרֶֽךָ׃
Gird thy sword upon thy thigh, O mighty one, Thy glory and thy majesty.
Read halakhic rulings (Jewish law) on Psalms 45:4 from the Mishneh Torah and classical halakhic sources, free online.