Suppose someone gets married, and it is not to the person God wants them to marry. They have acted in disobedience. Such a marriage may well not last. You cannot dictate to God what you will do, and therefore go against his will for your life.
So, it is possible it is God's will for you to marry a divorced person, if they did not marry in accordance with God's will. Someone said to me once:
Trust your gut feeling, it will never let you down.''
So, if you wanted to marry a divorced person, would you have peace in your heart at the thought of doing so?
I read this, and I want to say, 'Yuck.' It reminds me of the horror stories of false prophecies where one person prophesies to another that 'she is not supposed to be your wife' or 'he is not supposed to be your husband.' When John the Baptist told Herod, "It is not lawful for thee to have her" he was prophesying to a man who had married his divorced brother's wife while his brother was still alive. This was contrary to the law in scripture.
I believe God can direct people, and can direct people to marry. He can give dreams, visions, prophecies, and speak to people's hearts. But for marriage, you don't have to get a word from God, either. 'If you marry you have not sinned...' and the widow may marry whomsoever she wills, but only in the Lord. If God doesn't give specific direction and we ask for wisdom in faith without doubting, then we get it. If we trust in the Lord with all our hearts and lean not to our own understanding, in all our ways acknowledge Him, then He will direct our paths.
God ordained marriage. What if someone goes into a marriage that fits God's laws and precepts-- marries someone who is not bound in marriage to someone else, honorably, the wife given in marriage-- but God had warned one about marrying the other. Would that make the marriage invalid? I do not believe so.
Consider another example in scripture. God commanded Israel to wipe out the Canaanites. But Israel foolishly believed some Canaanites, Gibeonites, who said they were from a far country and made a covenant with them. So they were not allowed to kill Gibeonites after that. When Saul killed them, Israel faced a drought for breaking covenant.
I remember when I was younger, I had an older female friend who said you have to be very careful to marry the person God has for you or you might have to get a divorce and marry the right person. I think i corrected her. It was hard to get a word in edgewise. But that is really wrong-headed thinking. She had heard testimonies of people who told of how God said that is your husband, that is your wife. And if that is legit, that is great. My wife had that experience right before our first conversation. I went home praying about if she was going to be my wife, but it would be a little longer before I sensed some kind of 'God told me' type situation.
If you make a mistake in choice of spouse, committing adultery, not providing for your own, not rendering due benevolence, disobeying Jesus' teaching about divorce, or the commandment of the Lord through Paul about not putting away your wife are NOT a solution about it.
Also, a feeling of peace can also be just not being around a stressful situation. Peace is a fruit of the Spirit. But notice when Jesus was about to face the cross and bearing our sin, He experienced some intense emotions in the garden of Gethsemene that do not seem like they were very pleasant when we read about them. He was about to face righteous suffering, and was in the midst of it on an emotional level. We should appreciate peace as a fruit of the Spirit, but we should not disregard the teaching of the Bible in favor of good feelings.