The question is; is there a group of people that celebrate universal truth about God, not "does there have to be one,".
That sounds like the reasoning of a person who wants to hide from the truth instead of seeking it.
Alice, Truly I offer you congratulations on a real piece of Conversation.
Hang on to that point.
Hang on to this thread of reason as a professing Christian.Assume that the other person who has used the Bible to reason with continue to do the same. You have used an expression that shows that you essentially are seeking truth. Now appeal for Bible reasoning on that common ground. Hold that ground for a minute and dig in there. Don't jump overboard.
Reason from the scriptures now---the meeting place for all proper Christian differences.
Be a witness.