Those who believe Scripture teaches that man is a dichotomy (2) see humans as comprised of two parts: a body and a spirit.
Then there are those who believe Scripture teaches that man is a trichotomy ( 3) and see man as comprised of three distinct parts: body, soul, and spirit.
Is it important to conclusively decide between dichotomy and trichotomy? Perhaps not; however, a word of caution is appropriate. Some who hold the trichotomist view have erroneously taught that God can bypass our soul/intellect and communicate directly with our spirit; such teaching leads to irrational mysticism.
Other churches have used the trichotomous position to teach the possibility of
Christians being demon-possessed. Because they see the soul and spirit as two separate immaterial aspects within the Christian, they postulate that one can be indwelt by the Holy Spirit and the other can be possessed by demonic forces. This teaching is problematic in that there are no biblical references that those who are indwelt by the Holy Spirit can be simultaneously possessed by demons.
Regardless of whether a Christian believes dichotomy or trichotomy best represents an accurate understanding of Scripture, we can all unitedly praise God with the psalmist in Psalms 139:14........
“I praise you because I am fearfully and wonderfully made; your works are wonderful, I know that full well”!!!!