INTP, former Christian--now agnostic atheist. I had experiences I considered proof of God at the time. When I left my religion, my eyes became opened to how I'd had spiritual experiences/confirmations based on things that I now know for a fact are not true, so I lost the ability to trust in good feelings to steer me towards what's real or not real. If I can generate "truth" feelings based on things that are historically proven to be made up (specifically pertaining to my religion), I can generate truth feelings on almost anything I want to believe in.
I don't think we can know God, if he/she exists. Our proof is all based on feelings, out-of-body experiences for some, coincidences, dreams/visions, and texts that are considered sacred. Just because someone wrote a book about Jesus or Mohammed doesn't mean it's a "true" book. It's just a book. All of these things are purely subjective. The more I read about the origins of religion in general, and of the need humans have to create a framework of safety, justice, meaning and comfort, the more I see God as a creation of Man, not vice versa. I think there may be some sort of "god energy" out there, but that's really as far as I'm willing to go. If there's a God, no one knows anymore about him or her or it than anyone else does--no one even knows if God is anthropomorphic or not.
I'm definitely not a Christian anymore. Christ may have been a great teacher, but I don't buy the idea that God came down in human form and that we needed him to die for the sins of the world. There's lots of mythology surrounding Christ's life that shares an awful lot of characteristics with other ancient Gods. We've adopted other mythologies to create our own, but our ignorance of those mythologies makes ours seem unique. Christ is not the only being that was born of a virgin, that lived a sinless life, that was tortured to death and resurrected.
I was indoctrinated in religion from the time I was a small kid. My parents' and my adult role models' approval of me was very much tied up in my being a good Christian girl. I believed, I had spiritual experiences, I loved God. But there were always logic cracks. Always things that bothered me, that made no sense. I guess getting close to 40 makes you really examine what is making you happy versus what you're doing out of habit or to please others. Under examination, organized religion quickly got jettisoned. It was a HUGE relief. Soon after went my belief in God and Jesus. That was unexpected and hard at first. But I simply couldn't believe anymore. It didn't make sense. I now live by the Atheist's Wager. If there is a God, he/she will know what kind of person I was and will not expect me to comply to one religion's idea of what is right, nor penalize me for not picking the right one. If there is not a God, I will have lived the kind of life I wanted to live, making the best of my time on earth, rather than laying up treasures in heaven.
So, yeah, my NTness was subjugated to religious indoctrination for many years. My brain is fully mine now, and I love it.