Polygamy is something that was allowed because of it's necessity at the time. It is no longer necessary, in fact it was already not seen so decent as far back as Christ being that the apostles were more critical of monogamy. Just because they don't declare polygamy wrong doesn't mean that is right in this day and age.
Abraham slept with another woman to conceive a child because his wife didn't believe she could bear one.
What was the fruit of that? The eventual birth of Islam. One bastardized child gave birth to what has become a menace to the entire world.
It's God's most epic way of saying that it's better to have one wife, just as the apostles taught.
lain:
