Eight

  - Hebrew "eighth":

○ "Shemini"

○ שְׁמִינִי

○ https://biblehub.com/hebrew/8066.htm

- Hebrew "eight":

○ "shemoneh"

○ שְׁמֹנֶה

○ https://biblehub.com/hebrew/8083.htm

- Derived from Hebrew "fat"

○ "shamen"

○ שָׁמַן

○ fat, lusty, plenteous

○ https://biblehub.com/hebrew/8082.htm

Noah and family - 8 survivors

1 Peter 1:14

For it is better, if the will of God should be so, that you suffer for well-doing than for evil doing, for Christ also once suffered for sins, the just for the unjust, being put to death in the flesh but quickened by the spirit, that he might bring us to God — for which cause also he went and preached unto the spirits in prison, some of whom were disobedient in the days of Noah while the long-suffering of God waited, while the ark was preparing, wherein few (that is, eight souls) were saved by water — the like figure at which even baptism does also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God) by the resurrection of Jesus Christ, who is gone into Heaven and is on the right hand of God, angels and authorities and powers being made subject unto him <https://scriptures.info/scriptures/nt/1peter/1.14#14> 

Brother of Jared and company - 8 boats

Ether 1:11

And it came to pass that the brother of Jared — now the number of the vessels which had been prepared was eight — therefore the brother of Jared went forth unto the mount which they called the mount Shelem because of its exceeding heighth, and did molten out of a rock sixteen small stones;  <https://scriptures.info/scriptures/bofm/ether/1.11#11> 

Alma and his group fled for 8 days

Mosiah 11:1

Now Alma having been warned of the Lord that the armies of king Noah would come upon them and had made it known to his people, therefore they gathered together their flocks, and took of their grain, and departed into the wilderness before the armies of king Noah. And the Lord did strengthen them, that the people of king Noah could not overtake them to destroy them. And they fled eight days’ journey into the wilderness, and they came to a land, yea, even a very beautiful and pleasant land, a land of pure water. And they pitched their tents, and began to till the ground, and began to build buildings, etc. Yea, they were industrious and did labor exceedingly <https://scriptures.info/scriptures/bofm/mosiah/11.1#1> 

Lehi and family waited 8 years 

1 Nephi 5:13

And we did sojourn for the space of many years, yea, even eight years in the wilderness. And we did come to the land which we called Bountiful, because of its much fruit and also wild honey; and all these things were prepared of the Lord that we might not perish. And we beheld the sea, which we called Irreantum, which (being interpreted) is many waters <https://scriptures.info/scriptures/bofm/1nephi/5.13#13> 

Potentially related:

2 Chronicles 2:23

Also at the same time, Solomon kept the feast seven days, and all Israel with him, a very great congregation, from the entering in of Hamath unto the river of Egypt. And in the eighth day, they made a solemn assembly, for they kept the Dedication of the Altar seven days and the feast seven days. And on the twenty-third day of the seventh month, he sent the people away into their tents, glad and merry in heart for the goodness that the Lord had shown unto David, and to Solomon, and to Israel his people. <https://scriptures.info/scriptures/oc/2chronicles/2.23#23> 

Leviticus 11:11

Also in the fifteenth day of the seventh month, when you have gathered in the fruit of the land, you shall keep a feast unto the Lord seven days. On the first day shall be a Sabbath, and on the eighth day shall be a Sabbath. And you shall take to yourselves, on the first day, the boughs of beautiful trees, branches of palm trees, and the boughs of thick trees, and willows of the brook, and you shall rejoice before the Lord your God seven days. And you shall keep it a feast unto the Lord, seven days in the year. It shall be a statute for ever in your generations. You shall celebrate it in the seventh month. You shall dwell in booths seven days. All that are born Israelites shall dwell in booths, that your generations may know that I made the children of Israel to dwell in booths when I brought them out of the land of Egypt. I am the Lord your God <https://scriptures.info/scriptures/oc/leviticus/11.11#11>