For an atheist, you seem to want to know a lot about Theism. Well, you are welcome as I am concerned. Let us start with the universe. As you know, I hope, the universe could not have caused itself to exist. Since it had a beginning, according to many cosmologists, from the big bang, do you have any idea who or what caused the universe to begin if it could not have caused itself to begin? That's a question based on the Logic that someone or something did that job
for the universe to exist today.
When Einstein was asked if he believed in God, he said that, as a matter of fact, all his life was trying to catch God at His work of Creation. At the time this question was put to him, he was involved on a study about the expansion of the universe which he related it to God's Creation. Do you think that the expansion of the universe is a kind of continuation of God's Creation?