As for unusual circumstances, God specifically directed those particular prophets. God did not instruct the OP. In fact, God gave the OP an uneasy spirit about marrying this guy.
How would you know that. What is your basis for attributing her feelings to God?
They were together for years before marrying. If God was okay with it, I honestly don't think her instinct would tell her not to do it.
Sometimes the Lord does make us feel uneasy with certain things at times. But every time we feel uneasy that doesn't mean it's the Lord communicating to us. Jesus may have felt a little uneasy contemplating bearing the sin of the world while was in the garden of Gethsemene. The sweat like drops of blood is pretty evidence of that. That doesn't mean that what He faced wasn't the will of God.
But some decisions can't be undone. If a young dating couple make a wrong decision and fornicate, they can't unbear a baby produced from the union. Killing the baby wouldn't solve the problem or undo their fornication either. If you make a poor choice in getting married, getting a divorce doesn't set things right, either.
Yes, under duress. Just like the translators were under duress from the King when King James demanded that they translate the Word with a bias against women. It's in the prologue to the 1611 version, if you care to read it.
Do you mean the dedication to the king? What part are you referring to? I can't imagine either the Episcopal or Reformed translators were feminists back then.
If you make ANY agreement under duress, it invalidates the agreement.
I don't see that as a Biblical principle. Swearing and going back on it was one of Zedekiah's sins:
Jeremiah 36
11 Zedekiah was one and twenty years old when he began to reign, and reigned eleven years in Jerusalem.
12 And he did that which was evil in the sight of the Lord his God, and humbled not himself before Jeremiah the prophet speaking from the mouth of the Lord.
13 And he also rebelled against king Nebuchadnezzar, who had made him swear by God: but he stiffened his neck, and hardened his heart from turning unto the Lord God of Israel.
It seems likely that Zedekiah was under duress, in danger of life and limb. He ended up losing his eyes over this.
There is also this passage:
Psalm 15
1 Lord, who may dwell in your sacred tent?
Who may live on your holy mountain?
....
4 who despises a vile person
but honors those who fear the Lord;
who keeps an oath even when it hurts,
and does not change their mind;
But I suspect this wasn't real duress. I suspect no one had a gun to her head at either the wedding or the engagement. Being afraid to say no in front of a crowd is not duress. It doesn't free one from what they said.
I suspect if someone tried to make me marry someone at gunpoint that I really, really didn't want to marry back when I was single, I might still have refused to say I do and taken my chances. My guess is no one held a gun to her head.
Even in arranged marriages, the potential spouses are afforded the opportunity to say no.
That depends. In some cultures and some places they do. India is probably a mixed bag. There are probably plenty of girl's in Pakistan, India, and Afghanistan who aren't asked if they approve, even though many are. And a lot of people from those cultures accept the idea of their parents' involvement in the process.
This young gal was not given that opportunity and likely did not feel strong enough to say no. People are forced into marriages....it does not make the marriage right.
Let's see, if 50 people are at a party from his family and her family, and he asks to marry you, you can say 'no.' You can run out of the room in tears. You can say, "Let me think about it." Or you can say 'yes.'
It was Jewish culture, at least in the time of Christ, for the bride to consent, and Roman as well, at least as far as the Roman ceremony went. The Bible doesn't say bridal consent is required. But the laws could conceivably have been written around that assumption-- just as the divorce law in Deuteronomy 24 was written to curb and limit an unjust practice that was contrary to the creation design.
If you look at what made a marriage valid in the Old Testament, the father, if he were alive, allowing a man to marry his daughter was more of a key element. The father could refuse to give a daughter in marriage to a boyfriend she'd slept with, but he still had to pay the bride price if he took her virginity.
My point is, Biblically, you don't seem to be focusing on something here that the Bible discusses as a sticking point on what makes marriage valid. And you are using a little bit of social pressure is not even the same thing as the type of duress that would invalidate a legal agreement in our legal system.