Priestly Garments

To avoid accidentally showing their genitals, the Torah requires priests to wear underwear. Exodus 20, however, implies that priests don’t wear underpants, which is why they must access the altar via a ramp. Indeed, King David does expose himself when doing cartwheels before the ark, leading his wife Michal to rebuke him.

With the loss of the Temple, wearing Shabbat clothes conveys the כָּבוֹד וּתִפְאָרֶת, “glory and splendor” of the priestly garments.

Why does God need an opulent dwelling, with precious metals and jewels, and priests with lush colored outfits? According to Maimonides, God doesn’t; it is we who need it.