After prophesying the woes that will come on Israel, Isaiah relays a promise of the Lord’s:
For thy waste and thy desolate places, and the land of thy destruction, shall even now be too narrow by reason of the inhabitants; and they that swallowed thee up shall be far away.
The children whom thou shalt have, after thou hast lost the first, shall aagain in thine ears say: The place is too strait for me; give place to me that I may dwell.
Then shalt thou say in thine heart: Who hath begotten me these, seeing I have lost my children, and am desolate, a captive, and removing to and fro? And who hath brought up these? Behold, I was left alone; these, where have they been?
Thus saith the Lord God: Behold, I will lift up mine hand to the Gentiles, and set up my standard to the people; and they shall bring thy sons in their arms, and thy daughters shall be carried upon their shoulders.
And kings shall be thy nursing fathers, and their queens thy nursing mothers
The general symbolic meaning is clear. After their struggles and loss the people of Israel will be stunned by their blessings. In Isaiah’s time, as in ours, posterity was understood to be the blessing of blessings, so here it represents the magnitude of the blessings that the people of Israel will receive.
Nephi gives a more specific interpretation of the symbolism. He says that the great blessings the Israelites will recieve are that the gospel will be restored to the American “gentiles,” who will in turn share it with the scattered seed of Israel—
And after our seed is scattered the Lord God will proceed to do a marvelous work among the Gentiles, which shall be of great worth unto our seed; wherefore, it is likened unto their being nourished by the Gentiles and being carried in their arms and upon their shoulders
—and that the Lord will gather a broken and scattered people into a land and a nation again.
What if Isaiah also meant this promise of unexpected posterity literally?
Not everyone will be saved. Some will reject the stewardship God gives them and it must then be that God will then their “bishoprick let another take.” Parenting is a stewardship. Children need to be sealed to somebody.
Imagine coming up on Resurrection Morning, marveling in your new body, and then seeing around you the clean-limbed youths you never knew you had.
These breaths! These limbs! This resurrected being!
In my features His features seeing!
And this son I’ve found, in his face,
of my own lineaments a trace!