Each one have her own husband, each one his own wife (1 Corinthians 7:2) – so just one?
The commandment of monogamous marriage and the prohibition against marrying two or more wives FOR ALL is not in the Bible. Also, where it says that everyone should have HIS wife (husband):
2 But, [to avoid] fornication, each one have his wife, and each one have his husband. (1 Corinthians 7:2),
and that by way of permission:
3 The husband shall show his wife due favor; likewise the wife to her husband.
4 The wife has no power over her body, but the husband does; likewise the husband has no power over his body, but the wife does.
5 Don’t go away from one another, except by agreement, for a while, to exercise in fasting and prayer; and then stay together again, so that Satan may not tempt you through your inactivity.
6 Now I have said this as a commandment and not as a permission.
7 For I desire that all men should be as I am, but each one has his own portion from God, the one so, the other otherwise. (1 Corinthians 7:3-7)
(The apostle Paul was unmarried, which is why he writes, “I desire that all men may be as I am”), it is not written ONE WIFE, but his wife (1 Corinthians 7:2).
There is no requirement in Scripture that there be only one wife.
Church ministers are not allowed to have more than one wife. So all are not allowed?
Indeed, it is written about ministers of the church:
2 But a bishop must be blameless, a husband of one wife, sober, chaste, upright, honest, strange-loving, teachable, (1 Timothy 3:2),
12 A deacon should be the husband of one wife, good steward of his children and house. (1 Timothy 3:12),
5 For this reason I left you in Crete, that you should finish what was unfinished, and put elders in all the cities, as I commanded you:
6 If anyone is blameless, the husband of one wife, and has faithful children, who will not be reproved for debauchery or disobedience. (Titus 1:5,6).
Also about kings in Israel, the law of Moses says that they should not multiply their wives, that is, that there should be as many as there were before they were enthroned:
17 And that he should not multiply his wives, lest his heart should be corrupted, and that he should not multiply himself excessively with silver and gold. (Deuteronomy 17:17).
But, dear reader, what is written about servants of the church and kings applies to servants of the church and kings. They are to take care of God’s people, not their wives and children with all their worldly concerns and problems. Although a king may, by law, have several wives before he is enthroned.