Two wives are better than none?

[Terrance]

Mason's wife is dead, but he'll get another wife. 
Moses married Jethro's daughter. But he also had an Ethiopian wife. 
Or were there two of him? Moses one and moses two? 




I will sell your sons and daughters into the hands of the children of
    Judah, and they shall sell them to the Sabeans, to a people afar
off; for
    the Lord hath spoken it. 

--- Joel 3:8 --- 

And if a man smite his servant, or his maid, with a rod, and he die
under
    his hand; he shall be surely punished. Notwithstanding, if he
continue a
    day or two, he shall not be punished: for he is his money. 

--- Exodus 21:20-21 --- 

If thou buy an Hebrew servant, six years he shall serve: and in the
    seventh he shall go out free for nothing. If he came in by himself,
he
    shall go out by himself: if he were married, then his wife shall go
out
    with him. If his master has given him a wife, and she has born him
sons
    or daughters; the wife and her children shall be her masters, and he
shall
    go out by himself. And if the servant shall plainly say, I love my
master,
    my wife, and my children; I will not go free: Then his master shall
bring
    him unto the judges; he shall also bring him to the door, or unto
the door
    post; and his master shall bore his ear through with an awl; and he
shall
    serve him for ever. 

--- Exodus 21:2-6 --- 

Both thy bondsmen, and thy bondsmaids, which thou shall have, shall be
    of the heathen that are round about you; of them shall ye buy
bondsmen
    and bondsmaids. Moreover of the children of the strangers that do
    sojourn among you, of them shall ye buy, and of their families that
are
    with you, which they begat in your land: and they shall be your
    possession. 

    And ye shall take them as an inheritance for your children after
you, to
    inherit them for a possession.

--- Leviticus 25:44-45 --- 

And Moses had two wives. 

Then Miriam and Aaron spoke against Moses because of the Ethiopean
    woman whom he had married, for he had married an Ethiopian woman. 

--- Number 21:1 ---