I appreciate the great input on this topic. The reason I ask this is because of an issue that CW brought up in his post, that of someone having a 'calling' and using that to strong arm an unwilling spouse into something they weren't called to. It all goes back to motive.
I also appreciate the thoughts about 'revelation', coming to a knowledge of PM without any impetus from outside factors, but being led into it independently by the Holy Spirit.
I think what happens in a majority of cases is that a certain knowledge of plural marriage comes to an individual, whether through a friend, through reading some literature on the subject, or personal discovery in Scripture. At some point, a decision, a choice needs to be made whether or not to accept the truth of this discovery. That choice is an act of faith, and God responds to faith. I think that revelation as to the personal application of the truth is worked out in the life of the believer. As they continue to walk in that 'revelation', which is often in bits and pieces over a long period of time, a realization of the 'calling' to a particular marriage paradigm (plural, monogamous, single) is settled.
The Scriptures declare that 'faith comes by hearing, and hearing by the Word of God'-Romans 10:17. We also read in Hebrews 4:2 that 'the Word taught (or revealed), did not profit them, not being mixed with faith in them that heard it.' So, I think that an important factor in this whole process of understanding plural marriage and its personal application in our lives has a significant component of faith. We often do not emphasize this in many of our discussions on the matter, but there comes a times that we must say, "Yes, the word of God is true, and I believe it, and I will obey it.'
What role do you think that faith plays in this process?