28Do not be afraid of those who kill the body but cannot kill the soul. Rather, be afraid of the One who can destroy both soul and body in hell.
Soul: That part of man which isn't body.
Apparently there are two parts to man.
That's not a definition, that's just an assertion. You stated three things that make up man, body, soul and spirit. How does that make two?
What does Genesis 2:7 say to you?
"And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul."