, behold, I took the
compass, and it did work whither I desired it. And it came to pass
that I prayed unto the Lord; and after I had prayed, the winds did
cease, and the storm did cease, and there was a great calm.

Equipped with their compass, these ancients appear to have had the
advantage of Noah.

Their voyage was toward a "promised land"--the only name they give it.
They reached it in safety.

Polygamy is a recent feature in the Mormon religion, and was added by
Brigham Young after Joseph Smith's death. Before that, it was regarded
as an "abomination." This verse from the Mormon Bible occurs in Chapter
II. of the book of Jacob:

For behold, thus saith the Lord, this people begin to wax in
iniquity; they understand not the Scriptures; for they seek to
excuse themselves in committing whoredoms, because of the things
which were written concerning David, and Solomon his son. Behold,
David and Solomon truly had many wives and concubines, which thing
was abominable before me, saith the Lord; wherefore, thus saith the
Lord, I have led this people forth out of the land of Jerusalem, by
the power of mine arm, that I might raise up unto me a righteous
branch from the fruit of the loins of Joseph. Wherefore, I the Lord
God, will no suffer that this people shall do like unto them of old.

However, the project failed--or at least the modern Mormon end of it--for
Brigham "suffers" it. This verse is from the same chapter:

Behold, the Lamanites your brethren, whom ye hate, because of their
filthiness and the cursings which hath come upon their skins, are
more righteous than you; for they have not forgotten the commandment
of the Lord, which was given unto our fathers, that they should
have, save it were one wife; and concubines they should have none.

The following verse (from Chapter IX. of the Book of Nephi) appears to
contain information not familiar to everybody:

And now it came to pass that when Jesus had ascended into heaven,
the multitude did disperse, and every man did take his wife and his
children, and did return to his own home.

And it came to pass that on the morrow, when the multitude was
gathered together, behold, Nephi and his brother whom he had raised
from the dead, whose name was Timothy, and also his son, whose name
was Jonas, and also Mathoni, an