"I am not a body I am free, for I am still as God created me."
You cannot define yourself. God created you. You had no say in this because you didn't exist at the time. You came into being by his will alone, and per his design. Whatever you are, is given by him, and cannot be changed.
Some would possibly interpret this as imprisoning, as though grounds for rebellion. As if you want to change yourself but are not allowed. At best, you can deny what you are, as God created you, and pretend to be something you are not . But you can't actually remove what you are deep down.
You are free to do this. You can pretend to be anything you want. You can pretend to have authority over him and to have created yourself. You can redefine your images of what you are till the cows come home. But still you cannot replace what God has created.
This means really that no matter how you define yourself, you will never be wholly satisfied. This is because God has already laid claim to the perfect definition of you. The definition which results in you being at your happiest, most satisfied, most joyful and creative, and most accepting of yourself. To reject a perfect identity is to settle for less.
So if you are in the business of having to be the gatekeeper with an authority problem who wants to tell God what they are, you can go right ahead. But it will not ultimately satisfy you. Nor will it bring you total happiness or creative power or love or joy or peace or meaning. It can't, because there is only one perfection and that's the one God has chosen you to be.
You can own up to accepting a kind of "off the shelf" identity from God, accepting that you are as God created you and have never changed. Or you can deny that and go into a kind of nightmare of confusion about who and what you are, endlessly searching for the self you lost, and trying to replace it with make-believe fiction. But only accepting God's definition of you will truly fulfill you.
You can "try on" all manner of bodies. You can wrap yourself in wardrobes of clothing. You can put on masks and dress up and role play and pretend to be various things. But they ultimately are all empty because they lack the wholeness of God's definition of you. You can't find love and wholeness anywhere else. He has the monopoly on that.
Some rebel against God because they don't like this sense of not being free to deifne who and what they are. They think they have the right to redefine themselves in their own image and likeness, to whatever whim they please. Indeed they ARE free to do this. But that does not mean they can ACTUALLY accomplish it, or that it can make them happy. You can deny your reality, but you cannot extinguish it.
Somewhere deep down you know that only the self that God created you to be is the one you can fully accept and be true to. It's the only definition of you that is sane, and the only one that works. You are part of the functioning of the machinery of heaven. You have been given a function and a role to play, assigned by God's will. If you do not want to fit into that and fulfill that function, then you will rebel and try to invent other functions.
Only the function God gave you can work. Only God's will for you can make you happy. Only God's mind can keep you alive forever. And only accepting yourself as you really are can bring you peace. But you have to want it.