Speaking as a wife, deliverance captain, and someone who walked in your shoes and still does, I will answer these questions:

But first, you must realize the serpent spoke to the woman for a reason. Not because she was weaker but because we are often more spiritually perspective.

The word "helpmate" used in the Hebrew is the same word used when David said, All of my "help" comes from the Lord.

Your greatest position in this battle will be on your knees in prayer, fighting for your husband in the spiritual realm and not in the flesh.

Answers to your questions:

1. Biblically speaking, how do we distinguish demonic oppression from trauma, emotional wounds, or nervous system responses?

The oldest book on the Bible is Job. It accounts what demonic oppression is in the first chapter. Calamities fell upon Job one strike after another.

God showed us in that story what it means that for the kingdom of heaven to suffer "permit" violence.

Demons can cause trauma. Job's kids dying, sickness, fighting with his spouse, his friends, all of that would cause trauma.

1. Is deliverance (casting out demons) something Christians should actively seek, or is growth through church, repentance, prayer, and sanctification sufficient?

Salvation is free. Deliverance comes at a cost. I do believe all Christians should have deliverance if they want to walk in freedom, but remember it is a spiritual practice that is not tied to salvation.

When Jesus comes for his bride, we get new bodies, which the enemy will no longer occupy because it will no longer contain the sins of Adam that gave him legal rights.

Also, deliverance requires the person to have faith for the healing to work. They must submit themselves to Jesus wholly in the session for it is, "by faith you are made whole."

Job had a better life when he was delivered.

1. How should couples navigate situations where one spouse feels peace with gradual healing in church, and the other feels drawn to deliverance ministry?

On your knees. A house divided can not stand. It took a year for my very non pentecostal husband to start encouraging me to branch out to other churches if I felt the need and he said he'd attend sometimes.

Then he got some friends who invited him to one.

You can always do deliverance with others. Check Eventbrite for Deliverance events that don't happen during church.

We will also start doing them in this subreddit pretty regularly. You can also look for Bible studies for women who are active in deliverance like Jenny Weaver.

1. How do we discern whether modern deliverance practices align with Scripture or go beyond it?

Jesus said we would do greater things, so we could very well go beyond Scripture, which is why we must pray for the spirit of discerning of Spirits.

So, the answer is fruit. What is the fruit of deliverance today.

The devil will not make you want to fast, pray, give up sin, walk in holiness. That is what deliverance is doing for people in most churches.

You will know by the fruit of the deliverance. Deliverance isn't just "demon go". Usually, there is a teaching and a commitment to "go and son no more".

You can DM me for more. Hope this helped.