God knows

So I'm trying to explain to my 5 year old why I let his older brother have two popsicles.  It's not fair, says Sam, because "me and Jude only got one".  My reasoning: "Finn never got to go to Starbucks and you and Jude did".  Then we proceed into a very mature dialogue,
Sam: "That's not fair"
Me: "Yes, it is fair"
Sam: "God knows its not fair"

I don't know whether I should be concerned that my 5 year old is reaching for higher authority...or delighted that my 5 year old is reaching for higher authority.

I don't know whether I should be concerned that my son is putting God on his side...or delighted that my son is beginning to recognize that a just God reigns, and even when injustice is exercised upon us....God knows....