How the Cohen Gadol Became the Cohen Gadol
There were three steps necessary for Aharon to become elevated as the Cohen Gadol who would preside in the mishkan; the first two were being dressed and then annointed by Moshe, the third, Aharon bringing korbanot , or sacrificial offerings. I have written about this in the past, but I think there was symbolic import to the person serving as the King annointing and dressing the Cohen Gadol; Moshe Rabbeinu was obviously beyond reproach, but similar to the Christian faith in Judaism as well, there would be conflicts between the primacy of the king and the high priest, and a statement, in my humble opinion was being made here that whilst the high priest received authority in a manner of speaking from his royal affiliation (Moshe annointed Aharon), that notwithstanding, in a manner of speaking, dressing someone else shows subservience, and the superiority of the other - think Haman dressing Mordechai in the upcoming reading of Megillat Esther. It would seem thus, in the famous c...