rampant:

did it happen in d old testament or new testament?

The custom of marrying more than one wife continued even in the new testament. That was why Appostle Paul advised elders and apostles to marry only one apparently so as not to be distracted by too many issues. If the custom had stopped during the new testament era, then there would'nt have been the need for such advice. Furthermore, even Moses that brought the Law had two wives.

If marrying more than one wife is a sin, GOD would have clearly stated it in the Torah given to Moses since other lesser issues like making a tatoo in ones body is expressly forbidden in the law. Why can't it be clearly stated if the following could be clearly stated as forbidden:

Making Tatoos on your body

Being Intimate with your mother (18:7)

Being Intimate with your father’s wife (18:

Being Intimate with your sister (18:9)

Being Intimate with your granddaughter (18:10)

Being Intimate with your half-sister (18:11)

Being Intimate with your biological aunt (18:12-13)

Being Intimate with your uncle’s wife (18:14)

Being Intimate with your daughter-in-law (18:15)

Being Intimate with your sister-in-law (18:16)

Being Intimate with a woman and also Being Intimate with her daughter or granddaughter (bad news for Alan Clark) (18:17)

Marrying your wife’s sister while your wife still lives (18:18)

Being Intimate with a woman during her period (18:19)

Being Intimate with an animal (18:23)

Eating certain animals etc etc

Why should it be so difficult to include marrying more than one wife as a sin like the above and many more that are not even as important? I think the issue was and still is marrying women that may turn your hearts towards other gods. i.e Marrying non-hebrew during the biblical years.

candy: A Christian should not marry more than one wife.

why