I do have one piece of advice: discuss your beliefs about polygyny very thoroughly with anyone you have an interest in, as well as with everyone in that person's life with whom you associate, long before you indicate your interest in her as a potential mate. If you get kicked out of your church, it won't be nearly as painful as if it occurs in the context of your love interest being part of the 'prosecution' or 'persecution.'
I know this reflects some of my biases, but what's the point of belonging to a club that wouldn't have you as a member if they knew who you
really were? The only hope we have for any of this lies in men standing tall for everything important in their lives: for their families, for their faith, for their beliefs, for their freedoms, etc. Speaking uncomfortable truths is a tremendous way to discover who is and isn't someone one can count on to stand tall beside one when the going gets tough, and that's not really too high of a standard to have for one's potential spouse, either. Then,
if, when the dragons start breathing fire, your potential love interest doesn't knuckle under to the lust for social approval or join in on enforcing it, and
if she treats you with decency and respect even after the dragon breath from others has died down, and especially
if you find this woman following you to one church after another as they successively invite you to become a member just long enough to kick you out for failing to fully support their extra-biblical teachings (because, believe me, if a church is condemnatory to the point of shunning or excommunication about polygamy, it will be active in condemning various other behaviors not condemned by Scripture or promoting so-called truths not present in Scripture), then you'll be in a position to expect a pretty good chance of a welcome audience for your expressions of fondness. If she waves good-bye when you get kicked out, or especially if she looks the other way or joins in on condemning you for speaking truth, your chances with her never were worth risking your present family for her.
It doesn't matter how correct you are that she
would fit in well with your already-existent family or how correct you are that she and you would be a perfect couple in Fantasy Land.
I say this last thing with all the spiritual and relationship scars necessary for proving that I know what I'm talking about: it's beyond essential that you get everything straight with your 1st wife before you destroy any possibility with a potential 2nd wife. Unless you have established air-tight authority in your home, if your 1st wife "isn't on board" with polygamy, you may as well bank on your 1st wife sabotaging any effort on your part to create a plural family. Even some of the most verbally-supportive 1st wives only voice that support for two reasons: (1) because they have no confidence that you're ever going to really find some woman who will be willing to transcend the social disapproval, and, (2) in the unlikely event that you do find such a woman of steel, your 1st wife knows at an unconscious level that she can either disrupt the entry of the new woman into your household or make life miserable enough for her after she leaves that she will be able to run her off.
Please clear about what I am saying and what I'm not saying:
- I'm not saying that you're unworthy of being a husband of more than one wife; and
- I'm not saying that there are no real potential 2nd wives out there; but
- I am saying that our 1st wives are very often the greatest potential obstacle to creating plural families.
Everything about that being the case requires us, as men, to strengthen ourselves as patriarchs. Be internally vigilant; confront yourself and challenge yourself to address your weaknesses and bolster your strengths. Hold yourself 100% accountable for everything that happens in your family. And recognize that your wife, even if she's technically enlightened about the biblical truth of the legitimacy of polygyny, is just as much a creature of the swamp of our culture as are all other women; she has the automatic backing of the culture at large in any effort she makes to prevent you from taking in another wife. That automatic support extends even to the most Bible-centric churches, even the ones that declare from the pulpit that we should all prepare to set ourselves apart from the world and be willing to suffer for it, even the ones who demand that no justification ever exists for divorce. Bring up your intention to engage in polygamy in your household, and watch how fast the preachers in those churches start pressuring your 1st wife to divorce you!
What is called for these days is what Jason Whitlock is trying to pound into our heads: the culture is dominated by people for whom the destruction of masculine males is their primary objective, so the only strategy that stands a chance of turning the tide is for strong men to stand shoulder-to-shoulder with each other on a whole host of issues. Become the patriarch of your family, but also start forming alliances with other men who are doing the same thing. Pledge yourselves to each other to have each other's backs about that whole host of issues, up to and including being willing to take those men and their families into your home should those men find their lives entirely turned upside down for taking the stands they take. The Adversary thrives based on the sheer numbers of people he's able to agitate against the truth in order to protect their tenuous conformity, so the only real earthly weapon we have against that is to become a band of brothers.