Craig

Thanks Marg for your response and the helpful links.
I agree that the godly characteristic of marital faithfulness seems to fit better than the fact of whether a person had multiple wives prior to conversion. The other qualities listed are mostly aspects of godliness that we can work on, mature in, repent of if we fail, pray for God’s help in etc.
In contrast, if “husband of one wife” just referred to not having multiple wives prior to conversion, it would stand out as a characteristic that nothing could be done about. You couldn’t divorce or kill all of your wives except your favorite! You would be a Christian but one with a permanent stigma. The apostle Paul could be a past murderer of Christians and still be greatly used by God as a leader in the church. But not so for the polygamist. This doesn’t make sense to me. So “marital faithfulness” sounds a more likely meaning to me.