Any Christian people can move to a place where there is no law against more than one wife, and marry more.
There are only few places where polygamy is accepted. Good luck
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Just remember. People that do this will have more trouble in their lives than one-to-one.
Indeed so I don't think any good reason for you to do this. Besides if you are really a true Christian or a committed person on whatever religion (aside from Islam since they're allowed to have more than one wife) you belongs, you will not do it in the first place because you know that it was strictly prohibited.
Just remember this one thing. Old Testament Israel was required to have more than one wife at times.
If a man's brother died and the brother had no children, it was a law/rule for the man to marry his brother's widow, to produce offspring for his dead brother. In fact, this might have been the generally-accepted practice throughout a good portion of the world back when the laws were given by Moses to Israel.
Now, imagine that a man in Ancient Israel had 5 brothers who were all married, but none of them had children. The 5 brothers went to war, and they were all killed. Almost instantly the man had 5 wives in addition to his own if he had one.
Jump ahead to the writing of the New Testament. If any of the N.T. writers weren't Jewish, they had guidance in their writing from people of Israel. In other words, they were all still acting in the laws of the Old Testament, because they were learning about the freedom given by Christ.
In 70AD the Romans came and destroy Jerusalem. How many times might an Israel man have lost his brothers in this Rome/Israel fight, that he might have had to take his brothers' wives to raise up children for his brothers?
The law/rule of marrying the childless wives of your dead brothers never stopped being a law/rule for believers. Rather, it became a custom to not obey this law/rule. The evidence that the law remained active - and is essentially active among Christians today - is in the New Testament books of 1 Timothy and Titus:
1 Timothy 3:12:
A deacon must be the husband of but one wife, a good manager of his children and of his own household.
Titus 1:6:
An elder must be blameless, the husband of but one wife, having children who are believers and are not open to accusation of indiscretion or insubordination.
If the law/rule of marrying your dead brother's wife had not been part of the life of the early Christian church, Paul (who wrote the above verses) would not have had to make that distinction for Timothy and Titus. So we see by what Paul wrote, that one wife is better, but more than one is understood as having been allowed... and even advocated in some circumstances.