Just for the sake of discussion Im going to post a few of those scriptures..
Genesis 2:24 Therefore a man shall leave his father and mother and be joined to his wife, and they shall become one flesh.
-I believe that God intended man to have one wife but when he commanded man to propagate the earth is when they began marrying more than one woman. I dont believe it was supposed to last beyond that point.
Matthew 19:5 "Have you not read that He who made them at the beginning 'made them male and female,'5 and said, 'For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh'? 6 So then, they are no longer two but one flesh. Therefore what God has joined together, let not man separate." 7 They said to Him, "Why then did Moses command to give a certificate of divorce, and to put her away?" 8 He said to them, "Moses, because of the hardness of your hearts, permitted you to divorce your wives, but from the beginning it was not so. 9 And I say to you, whoever divorces his wife, except for sexual immorality,and marries another, commits adultery; and whoever marries her who is divorced commits adultery."
-If man was allowed multiple wives why would this be an issue? Rather than divorce the wife which Jesus is speaking against.. couldnt a man just marry another? He also mentions how 2 become 1 flesh.. not 3, 4, and 5 becoming one flesh.
1 Timothy 3:2 A bishop then must be blameless, the husband of one wife, temperate, sober-minded, of good behavior, hospitable, able to teach;
1 Timothy 3:12 Let deacons be the husbands of one wife, ruling their children and their own houses well
-This is speaking of how the church is supposed to be led.. and the elders of the church are supposed to be with One wife.. as they are supposed to set examples for the congregation.
The Bible says that God’s original intention was for one man to be married to only one woman, “For this reason a man shall leave his father and his mother, and be joined to his wife; and they shall become one flesh” (Gen 2:24). Mankind quickly perverted the concept of marriage to allow for multiple wives (Gen 4:19). The Bible does not specifically condemn the practice of polygamy until the New Testament (1Tim 3:2), but that does not mean God approved of polygamy before.
We see in Deuteronomy 17:14-20, that the kings were not supposed to have multiple wives. Ultimately the case can be made from Genesis 2:23-24, I Timothy 3:2 & 12 and Titus 3:12 that nobody should have multiple wives. Although the New Testament passages relate to elders and deacons we can apply it to all Christians men because these are worthy standards for all men and we should all seek to be Holy as God is Holy (I Peter 1:16), and if these standards are holy for elders and deacons then they are holy for all.
Ultimately, everyone who had more than one wife was in sin and against God's will. However, God does not constantly admonish us for all sins in the same way. Everyone sins every day and sometimes we do not see the immediate response in relation to that sin. I can speed and not have a direct chastising from God, although I would certainly have conviction. In the same manner I can commit other sins and not feel the response of God, however I should always know that God hates sin and that as a Christian I know that Jesus bore my sins on the cross and I do not want to multiply those sins. I can also sin and see that God is responding immediately to cause me to stop my rebellion, repent and return to Him. It is God's decision how and when He admonishes His children and those who are unsaved.