And I might add, of the line of Jesus himself. How amazing is our God. Certainly this gives us all hope that when we truly repent, as David did, that God will redeem even our most shameful things. But the emphasis is on truly repent, which David did.
I would imagine that part of our not understanding is not knowing the culture of the time. It is correct that most women bathed in the river and probably in the same fashion as Bathsheba did. If someone wants to sin they can find it anywhere. On bill boards, TV, at the river bank, on roof tops. The burden is in our hearts, do we turn away or partake? We become like what we behold, if we behold iniquity we become sinful. If we behold God we become holy.
As far as marrying an unsaved person. I would say never.
Amos 3:3 Can two walk together, except they be agreed?
Life is rough enough without being challenged in your own home constantly. I know, because I got married before I was saved and now for 33 years with regards to spiritual matters, I walk alone. My husband is a wonderful man, but at times it is really difficult because he thinks I don't live in reality. I am supposed to get down in the mollygrubs with him and feel bad, etc. I just can't. God has given me a thankful heart and a rejoicing spirit and it makes him nuts at times.
I do believe that a virtuous woman is as was shared already and definitely Proverbs 31 speaks what a man really wants.
Pro 31:11 The heart of her husband doth safely trust in her, so that he shall have no need of spoil.
Pro 31:12 She will do him good and not evil all the days of her life.
It would be a rare thing to see someone who has self on the throne of their lives able to live this out. It is important here to understand that these verses are speaking of a woman fully committed to God not just a dabbler. If the woman is just going through the motions, or man for that matter, this fruit will not be evidenced in their lives. A virtuous woman lives the sermon on the mount, takes up her cross daily and follows Him. Is given to hospitality and kindness and has natural affection. Loves and respects her husband, she does not humiliate him in public, and tenderly cares for her children, makes sure there is food on the table, the house is clean, the laundry is done. She doesn't sit around watching soap operas and being a busibody in her neighbors house. She redeems and wisely uses her time.
Isn't this that kind of wife any real christian man would want? Crazy not to I'd say.