Thank you for your response! I guess what I'm trying to address is several issues in proposing the fund (which goes beyond just monetary stuff).
1) It provides a safe framework by which the body can address the needs of widows rather than the "goodness" of the parishners. Acts 6 is the first example of this as men were selected to help take care of them. I would probably point to 1 Timothy 5 for the rules surrounding them.
2) It helps bring a mind of community as the concerns of a young patriarch is adddressed. My thoughts would be one a consistency of doctrinal standards that he feels impressed by the Lord to continue after his death (like a will but is a framework for elders - i.e. a covenant theologian probably would not enjoy an armenian directing his wife and children). Another is the continual guardianship over the family that the body does through that elder(s)/deacon(s) while they take on that role and in turn look for a more permanent "replacement" (sounds like a used car part -LOL).
3) Such a framework (fund and elders/deacons) could be used to help single women who are new to the faith and may or may not have children (needless to say their own framework of support). One of the worst things I could imagine if I ever decided to add a wife is to use the World's resources to find an extra wife. If I don't use that, what is the alternative? Wait until my buddy, the patriarch, or brother kills over and take his wife? I could imagine all sorts of thoughts if that became the standard practice of getting an additional wife and it might be cause for less fellowship. Hmmmm, why are they inviting us back over for BBQ? Is it because they enjoy my fellowship or because I told them that I have high colesterol? LOL. Instead, such a framework could be used to help disciple her instead of her feeling like a piece of meat (okay, I'm in this little cult but do they just want me as an extra wife or are they actually looking after my best interest). Through such a framework, people can prayerfully introduce her to families that might be a good fit while helping to protect her from ill-suited ones. If it was your daughter and everyone in your family was dead, what would you want? Would you want her face plastered on some polygynous singles board where the strange geeky guy that looks like a cross between Doc in Back to the Future and the Swamp Creature with visions of becoming the next Warren Jeffs could hook up with her and have tons of kids? Orrrrrrrrr, would you feel better if you had a framework to lean upon where people invested in her and prayerfully sought out a husband for her while protecting her heart because a Warren Jeffs Doc/Swamp Creature is soooooooo alluring to aching hearts. LOL Again I would use 1 Timothy 5 and Deuteronomy 27:19 as my framework in this.
The financial part comes in where we help the deacons/elders do their work. It is really too much to ask of one family to take on that of another family (or unexpected person). How many of us have a wife/wives working away from home when we are convicted that this is not the ideal according to the Word of God? How many of us men are working jobs away from home and not fully taking in the mandate given to us in Deuteronomy 6? Is it not human nature to then say "I would love to help out but I just didn't plan to have any money go to help this situation" or "Wow, a girl that is interested in polygyny. Maybe she's a marginal Christian that hates kids with suicidal tendancies but she's interested in becoming a sister wife! Hey honey! Get that extra room in our single wide ready and call wellfare to let them know we're adding a new name to the dole!". In the later, when emotions are involved (especially in executing a vision from God) we're all very subject to stupid (i.e. Abraham, Sarah and Hagar - yeah worked out reeeaaallll well). So I guess we should throw in accountability as extra benefit number 4.
Other verses that I think point to the responsibility of the Body doing this would be James 1:27 and Psalms 68:5.
Lastly, before raising up that I should do this, I'm fairly disqualified for this at this time. I'm fairly irresponsible with money (trying to get better at this) and though we live comfortably I would not trust myself with anything other than my money (which is the Lord's) because its accumulation was not by any craft of my own. I'm also completely and totally slammed to the point I can hardly get any time to post on a board to a group that I've been familiar with for the past 5 years (yeah, call me a lurker). It's just now that I've been able to do a couple of things!
Anywho, I've posted years eyes off so I'm going to post this without rereading/spellchecking it (we really need that as a function on this board - rereading bot as I'm a perfect spell checker - LOL).