Randy, there are some biblical scholars who believe that man is made of 2 parts and not 3. This is called a dichotomy of man.
They believe, as you seem to, that the spirit is PART of the soul.
There's nothing wrong with this....the 3 parts are still present in one form or another. It just seems easier for me to know the 3 part model, trichotomy, to understand how man functions.
As you know, in the O.T. the heart is often referred to as if it were the spirit OR the soul. We do have to keep in mind that the O.T. was written 4 thousand years ago and man was not understood really well at that time. We know that the heart is an organ and does not hold either the spirit or the soul of a person.
This is helpful:
What is the heart, according to the Bible? What does the Bible mean when it talks about the heart? What is a biblical understanding of the human heart?
www.compellingtruth.org
What is the difference between the soul and the spirit? If both the soul and spirit are immaterial, how are they distinct from each other?
www.compellingtruth.org
Right! And you've just quoted the 3 parts of man:
The sword of God can divide SOUL, SPIRIT, and joints and marrow,,,which is the physical BODY.
We also find this in
1 Thessalonians 5:23
Now may the God of peace Himself sanctify you entirely; and may your spirit and soul and body be preserved complete, without blame at the coming of our Lord Jesus Christ.
All 3 were not mentioned at all times,,,but since the bible speaks of 3, we must accept that there are 3 elements, as I think you do accept.
Questions:
Does the body live after death? (immediately after)
Does the soul live after death?
Does the spirit live after death?
What dies and what continues to live.....
Are you still YOU after death...
Are you still connnected to God....
Which 2 parts would these be?