Thanks Nicholas, a few comments in response. Is God simple or complex? Aquinas argued that God is the most simple thing there is: "The argument for divine simplicity begins by considering whether God is a body. Aquinas points out that all bodies are subject to change and can be causally affected; since neither of these things can happen to God, God is not a body. Aquinas goes on to argue that there is no difference between God and his essence."

Aquinas may not be compelling to you.

Personally I have a hard time understanding the objection to the Cosmological argument that it is not necessary that everything have a cause. Do you know of anything that doesn't have a cause? Why would the universe be the one exception? It seems more reasonable to conclude based on all the evidence before us that there is a cause. If there is, what is it?

I'm not real clear on the distinction you make between intuition which you seem to dismiss, and "knowing" that we exist because we experience our existence. Is intuition also an experience, a kind of knowing? If so, the intuition of about 99% of all humans who ever lived told them that there was a transcendent being or beings, or entities, personal or impersonal. I agree with Alvin Plantinga that for those who "know" God in the form of intuition or personal experience, there is something called the sensus divinatatis, a sense of the divine. In my own view, that sense of the divine, which I call Goodness, is also supported by my understanding of current science--the primary topic that has engaged me for over two years writing on Medium. Thanks again for the respectful discussion.