Leviticus 16:4
…therefore shall he wash his flesh in water, and so put them on. A priest must wash himself before donning his robes. On the surface, this is about respect for his office and the holy things of God. At a slightly deeper level, this is about the character of a good leader. As Paul wrote to Timothy, “Lay hands suddenly on no man.” Before annointing a leader, make sure that he won’t soil the mantle of his office.