The Holy spirit knows the difference between the soul and spirit, therefore it should be possible for us to know it too. That's the reward we get for being diligent, and discerning nuance.
Soul and Spirit aren’t the Same Thing
God is a Spirit
God is a spirit doesn't mean that God is mystical and undefined, it means His physical nature is that of a vapor. However, God is more than just a Spirit so it's accurate to say that God has a Spirit.
All Life is One
Our first Corollary is all life is one, but it has three Corollaries of its own. What is life? Life is dependent on water. Water's so fundamental to life that it becomes a challenge to be able to adequately describe it.
October 7th
All life is made from the same periodic table of elements, all life is dependent on water, and all life depends on energy from Hydrogen. Photosynthesis captures the energy of H+ fusing in the sun.
June 15th
The soul is our consciousness and personality which dwells in a body that is animated by the spirit. A spirit from God, literally breath, gives life to our body by energizing metabolism through the action of the hemoglobin molecule.