16 wives

Two little boys were sitting together in a church during a wedding ceremony. As the couple said "I do", one of the little boys leaned over to the other and asked. I wonder how many wives can a man have? The second little boy looked at his friend like he was an idiot and said, He can have 16 wives. How How do you know that? The first boy asked. Weren't you listening? The priest just said it. Four better, Four worse, Four richer and Four poorer.