I believe there is *both* a spirit that came from GOD that “belongs” to us, *and also* the Holy Spirit of GOD that (may) live in us. They are two distinct things. Every living breathing human has the first kind; the second kind is a gift to believers.
But, I agree, *all* spirit (ours as well as His) is *of* GOD, so in that sense... whatever! :-)
I found a well-written (IMHO) dissection of the Scriptural concepts of soul and spirit that you might enjoy and profit from as well:
“Soul and Spirit in Scripture”
http://www.gci.org/spiritual/soulspirit
FRegards, and GOD’s blessings on you!
Thanks, I’ll look at this later; I’m sure it will help!