The Testimony of Jacob.
For as death hath passed upon all men, to fulfill the merciful plan of the great Creator, there must needs be a power of resurrection, and the resurrection must needs come unto man by reason of the fall; and the fall came by reason of transgression; and because man became fallen, they were cut off from the presence of the Lord;
Wherefore it must needs be an infinite atonement; save it should be an infinite atonement, this corruption could not put on incorruption. Wherefore, the first judgment which came upon man, must needs have remained to an endless duration. And if so, this flesh must have laid down to rot and to crumble to its mother earth, to rise no more.
O the wisdom of God! His mercy and grace! For behold, if the flesh should rise no more, our spirits must become subject to that angel who fell from before the presence of the eternal God, and became the devil, to rise no more.
And because of the way of deliverance of our God, the Holy One of Israel, this death of which I have spoken, which is the temporal, shall deliver up its dead; which death is the grave.
And this death of which I have spoken, which is the spiritual death, shall deliver up its dead; which spiritual death is hell; wherefore, death and hell must deliver up their dead, and hell must deliver up its captive spirits, and the grave must deliver up its captive bodies, and the bodies and the spirits of men will be restored one to the other; and it is by the power of the resurrection of the Holy One of Israel.
O how great the plan of our God! For on the other hand, the paradise of God must deliver up the spirits of the righteous and the grave deliver up the body of the righteous; and the spirit and the body is restored to itself again, and all men become incorruptible, and immortal, and they are living souls, having a perfect knowledge like unto us in the flesh; save it be that our knowledge shall be perfect.—2 Nephi, ix: 6-8; 11-13.