core argument
Restoration contradicts Christian continuity
The LDS church claims restoration after apostasy. Christianity claims continuity under Christ's promises. Both cannot be true in the same sense.
LDS doctrine claims loss and restoration
Official LDS sources say priesthood authority was withdrawn after the apostles and that the fullness of the gospel was restored through Joseph Smith. Joseph Smith-History says he was told to join none of the existing churches.
That is not ordinary denominational disagreement. It is a claim that the visible historic church lacked essential authority.
Jesus promised His church would endure
Matthew 16 says the gates of hell will not prevail against Christ's church. Matthew 28 promises Christ's presence with His disciple-making mission to the end of the world.
The New Testament warns about false teachers, but warnings about apostasy do not prove a total loss of Christ's church and priesthood from the earth.
Apostasy warnings are not a total-collapse promise
The New Testament plainly warns about false teachers, corrupt leaders, and churches that need correction. Those warnings are serious, but they do not say Christ's whole earthly church would lose the gospel and priesthood authority for centuries.
Warnings about danger must be read beside Christ's promises. The same New Testament that warns against error also promises Christ's continuing presence with His people.
Restoration is mutually exclusive with continuity
LDS restoration doctrine does not merely say the LDS church is a fresh denomination. It says priesthood authority and the fullness of the gospel had to be restored because the Christian churches lacked them.
That claim cannot sit comfortably inside Christianity. If it is true, Catholic, Orthodox, and Protestant Christianity lacked essential authority. If Christianity is true, the LDS restoration is not the restoration of the same apostolic church.
Primary references
The argument rests on public Scripture, official LDS material, and Christian sources.
Matthew 16
BibleRef
This challenges total priesthood loss and restoration as a restart.
Matthew 28
BibleRef
Triadic language belongs with one divine name, not three unrelated beings.
Apostasy, Topics and Questions
The Church of Jesus Christ of Latter-day Saints
Official LDS source teaching that priesthood authority was withdrawn after the apostles.
Restoration of the Church
The Church of Jesus Christ of Latter-day Saints
Official LDS source saying the fullness of the gospel was taken from the earth and restored through Joseph Smith.
Restoration of the Gospel Study Guide
The Church of Jesus Christ of Latter-day Saints
Official study guide presenting the Restoration as the return of priesthood authority, ordinances, and the fulness of the gospel.
Joseph Smith-History 1
The Church of Jesus Christ of Latter-day Saints
Canonical account where Joseph Smith is told to join none of the existing churches.
Are 'Mormons' Christian?
The Church of Jesus Christ of Latter-day Saints
Official essay acknowledging LDS rejection of post-New Testament creeds and distinct restoration claims.