I can barely afford the one wife I have so I have no stake in advocating polygamy – meaning marriage of more than one wife to the same man.
In the Old Testament polygamy was not only permitted and practiced, but at times it was mandated.
A levirate marriage (Hebrew: yibbum) is mandated by Deuteronomy 25:5-6 of the Hebrew Bible and obliges a brother to marry the widow of his childless deceased brother, with the firstborn child being treated as that of the deceased brother, (see also Genesis 38:8) which renders the child the heir of the deceased brother and not the genetic father. There is another provision known as halizah (Deuteronomy 25:9-10), which explains that if a man refuses to carry out this ‘duty,’ the woman must spit in his face, take one of his shoes, and the others in the town must always call him ‘the one without a shoe’. This was an act of disrespect because he was too selfish to take his brother’s wife.
In the Bible in Ruth chapter 4, the nearer kinsman refused to take Ruth as a second wife and therefore missed being in the lineage of the Messiah and the house of David.
II Samuel 12 says, “7 Nathan said to David, “You are the man! Thus says the Lord, the God of Israel, ‘I anointed you king over Israel, and I delivered you out of the hand of Saul. 8 And I gave you your master’s house and your master’s wives into your arms and gave you the house of Israel and of Judah. And if this were too little, I would add to you as much more.
God tells David that He gave David multiple wives and would have given him more if he had asked.
In the New Testament many have quoted I Timothy 3:1-3; 3:12; and Titus 1:6 as forbidding multiple wives to leadership, but the literal Greek is “First wife married.” It could be interpreted to mean a divorced man may not be in church leadership, but it certainly does not forbid polygamy. In New Testament Jewish society it would have been interpreted as forbidding unmarried men in church leadership. That was the rule in the Jewish Sanhedrin. A man without at least one wife could not serve in leadership.
In Matthew 19:1-10 Jesus says that God’s original plan was not celibacy but marriage though there are circumstances where celibacy may be practiced.
In I Corinthians 7:25-28 Paul says that in times of distress it is permissible to remain single, but stresses this is his opinion, not from God.
In I Timothy 5:14 Paul tells widows less than 60 years old to get remarried and not try to minister as a single woman. This could not have been practiced without polygamy.
It would have been a simple addition of one sentence in the New Testament if God had wanted to say that though I once commanded polygamy in certain circumstances, I now forbid it. He didn’t.
Mandated monogamy comes not from Christianity or Judaism but from Greek-Roman culture. The Romans despised the Jews for practicing polygamy. The Romans had prostitutes, slave women, and affairs, but only one legal wife to produce heirs. To avoid being persecuted both the Jews and Christians gradually gave up polygamy. To justify their actions they gradually re-interpreted Scripture.
The result is that we have many single, lonely Christian women who are not only tempted by physical desire but having to face life without a marriage partner.