I was having a discussion recently about the history of polygamy (multiple marriage partners) and the question came up as to why was polygyny (one man, multiple wives) allowed while polyandry (one wife, multiple husbands) not?
My thought was from a utilitarian point of view, biologically speaking, a man could have children by multiple wives, better fulfilling the commandment to multiply and replenish the earth. The only practical requirement would be that the man was able to provide for and protect his wives and children.
The counter argument was made that in a polyandry situation multiple husbands and fathers could better protect their wife an children.
Is there somewhere in the Bible specifically that says polygyny was allowed while polyandry was not?
Reference: The Bible seems to allow polygamy. Why doesn't the church? (Bible doesn't every specifically reference polygamy, but references the practice of polygyny, but not by name).
Note: This isn't debating or encouraging the practice of polygamy today.