Polygamy and polyamory are sins?
So I’m 17 and I was just wondering are polygamy and polyamory sins? I mean I would think they are same as with sex outside of marriage, Homosexuality etc but I see many people try to justify it because David, Solomon etc did it, I’m not really well informed in verse as much as the next person, but I thought God didn’t support the relationship but he used them to do his will, like how God can use people’s sins to bring about righteousness sometime,hope that’s not heretical.
But tell me if I wrong, I mean spiritually it feels super wrong, but for some people their flesh is attracted to it, and people say it’s in our nature to have as many partners as possible which I don’t believe in.