LEV 21:12

12 He must not leave the Sacred Tent [to join those who are mourning], because he would cause himself to become unfit for his work and would also defile/desecrate the Sacred Tent. He must not leave the Sacred Tent [at that time], because by being anointed with olive oil he has been ◄appointed/set apart► to serve his God [in the Sacred Tent]. I, Yahweh, [am the one who am commanding this].