As a Congregationalist (formerly the American Pilgrim church), I feel every Christian must develop a personal epistemology that will embrace spiritual experiences and reinterpret dogma--over and over again throughout life. Our denomination helped create many of the famous Universities in the United States so that our ministers were sufficiently educated to mentor the congregation. There are many aspects of Congregational thinking that aligns well with Orthodox Christian thinking--consistent with the Gospel of Thomas--but not all.
Your flavor of Gnostic Christianity reminds me of Christian fundamentalism. To me, you have a very peculiar concept of God--a rational construct. My concept of God is very spiritual and experiential. I believe in God because I feel his presence--and that presence has grown over the years--in a very Tolstoyan way.