4 He shall not defile himself, being a chief man among his people, to profane himself.
Leviticus 21:4 Cross References - WEB
Ezekiel 24:16-17
16 “Son of man, behold, I will take away from you the desire of your eyes with a stroke: yet you shall neither mourn nor weep, neither shall your tears run down.
17 Sigh, but not aloud. Make no mourning for the dead. Bind your headdress on you, and put your sandals on your feet. Don’t cover your lips, and don’t eat mourner’s bread.”