To some people, that's going to sound like a very weird question. After all, we live in the post-Civil War era. In America, at least, nobody owns anybody anymore.
But, that's not what I'm talking about. I'm not talking about another person owning your body, I'm asking: Who owns your soul? It's a multiple choice question with only two options:
(a) God (b) Satan
For the Christian, the easy, obvious, and beyond a shadow of a doubt answer is (a). The Bible tells us:
For you have not received a spirit of slavery leading to fear again, but you have received a spirit of adoption as sons by which we cry out, "Abba! Father!"
The Spirit Himself testifies with our spirit that we are children of God,"
If you're struggling to answer, you probably fall under category (b). There's no convenient "none of the above" escape hatch. It's one or the other.