However, Adam was an archangel. The scripture refers to him as the archangel. The definition of that prefix - arch - is chief, or preeminent. An added definition says: “most fully embodying the qualities of his kind.” Adam, then, was the chief angel, but not Deity. He embodied most fully the qualities of an angelic existence. He was preeminent among the angels. He was their leader, and his name at that time was Michael. But, we repeat, he was an angel.
Mark E. Petersen, Adam: Who Is He?, p.7.
WOW! Mr. Petersen says “scripture” calls Adam “the archangel,” but you won’t find that in the Bible. Nor will you find in the Bible that Adam and Michael are the same. In the Bible we find that angels and men are different creations, yet the LDS teaching is not this way, and in fact teaches that some angels are resurrected men (e.g., Moroni)!
In the Bible we see that Adam was created as a man on the sixth day of creation, and that he was created out of the dust of the ground. (Gen. 1:26; 2:7) Adam did NOT pre-exist as an angel. In fact, the Bible tells us that the angels were there to watch the creation of man! (Job 38:7)
My feeling is that this was written to counteract the teaching of Brigham Young that Adam was God. Although Young claimed that God revealed this to him, and the LDS accept Young as a prophet of God, the LDS denounces the Adam-God doctrine as never having been official. Of course when Brigham Young taught the Adam-God doctrine, it was “official” church doctrine and the members believed it.
So here we have Brigham Young teaching that Adam was really God, while this author teaches that Adam wasn’t divine, but just an angel. Either way, the LDS teachings contradict the Bible, proving again that the LDS is NOT a Christian sect.