“there was polygamy in the OT”
None of the ancients ever married a woman who was married to another man, and I’ll remind you of this:
1Ti_3:2 A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behaviour, given to hospitality, apt to teach;
“Lot of people think they can erase so many things out of history when there are people still alive who have good memories.”
Yeah, like the Mormons. They really wish we’d not read the Bible or think critically about their prophets.
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We are in the last dispensation there were several before dispensations that all ended abruptly. We do not have the records or all the knowledge of why it happen... but a day will come when the Restitution all things will be made known, so just because we only have a Reader's Digest version of our Holy Bible it will all be revealed Amos 8
11 ¶Behold, the days come, saith the Lord God, that I will send a famine in the land, not a famine of bread, nor a thirst for water, but of hearing the words of the Lord:
I truly am looking to the day when more plain and precious truths surface about the Holy Bible.
Acts 3:21 … “The times of restitution of all things, which God hath spoken by the mouth of all his holy prophets since the world began.”
As for now The Church of Jesus Christ of Latter Day Saints have receive much of the Plain and Precious Truths and know there is more to come...