Peace and love to you Ras Obadiah,

the Thomas gospel is a wonderful thing indeed! Full of strange paradox and mystery, the section that the I is referring to is probably something that you could spend a lifetime meditating upon, savouring its fullness and possibilities. What is Ceasar's, What is God's, What is mine (or for that matter me)?
For me, the crucial section is that which you have kindly put into capitals. It is my (probably offbeat) opinion that perhaps jesus here is speaking as a human individual, expressing that aspect of his reality as opposed to that which is unified with the all. I&I think that this phrase is a call to responsibility for your life, thoughts, and deeds. That is what is MINE, in the sense of the word as I&I understand it. Ceasar's is the social reality that we inhabit, babylon if you like. God holds the ultimate nature of reality, the understanding of which is our aspiration. What is left for me? My life. How I&I navigate between the twin mysteries of birth and death. That is what is mine, and the consequences and responsibility for this living are rightly given unto me.

Just a thought.

Jah Lives,
Paul