I do not disagree that a God exists. However:
Arguing about it in the forums isn't going to change anyone's minds. Either they already agree with you or they don't, and you if they don't you'll just piss them off.
Also,
Deuteronomy 1:39, “…your little ones…your children, which in that day had no knowledge between good and evil, they shall go into it, and to them will I give it, and they will possess it.“
Using the Bible in an argument with atheism is a fallacy. "But the Bible says" is not a logical way to argue, even with people who might accept what the Bible says as true.
If he is truly all powerful he may make himself unknown because he is all powerful,
This sentence is definitely not helping your argument. In fact none of them are, but this one just shows you're grasping at straws. Again, I'm on the same side as you are, religiously speaking: I accept a God exists, but I also think you're not doing any good by raising tempers on the forums.