Does Mormonism restore the Aaronic and Melchizedek Priesthoods mentioned in the Bible? Joseph Smith claimed that he was ordained to the Aaronic and Melchizedek Priesthoods through a special visitation of the Biblical patriarchs who gave him these Priesthoods to be passed down to the male members of the Church through ordination.
When I was ordained as a Bishop of the Mormon Church, I took pride in the fact that my Priesthood Line of Authority went back to the former Mormon Prophet Thomas S. Monson with only one man between me and him! What I did not realize was that it was all a lie. No man in the Bible ever held both Priesthoods, and I wasn’t even qualified, under Biblical standards, to hold these Priesthoods. Even Jesus Himself was not qualified to hold the Aaronic Priesthood. So how could I claim to hold something that Jesus could not hold?
The Bible explains at Hebrews chapter 7: “For the priesthood being changed, there is made of necessity a change also of the law…. For it is evident that our Lord sprang out of Juda; of which tribe Moses spake nothing concerning priesthood.” (v.12,14) Because Jesus was not of the tribe of Levi, the only way He could function as our High Priest was for Him to be ordained to a completely different priesthood — the Priesthood of Melchizedek (Heb 7:21).
And because Christ lives forever, the Bible says “he hath an unchangeable priesthood.” This priesthood is called “unchangeable” because it doesn’t “change” hands from one person to another. In other words, it is a non-transferable, priesthood. So how could I as a Mormon believe that I held the Melchizedek Priesthood when it was not transferable from Jesus to me? Because Christ is our only High Priest, we do not need Mormon Aaronic and Melchizedek “High Priests” to stand between us and God.