God tells Moses to tell Aaron not to come before the Holy of Holies regularly -- so that he will not die like his sons Nadab and Abihu -- because the Divine Presence appears there as a pillar of cloud always.
While the right to self-defense is a principle deeply rooted in Jewish biblical and rabbinic sources, this week's Torah portion actually calls on us to think about how not to stand our ground as we respond to the needs of others.