> If we are just chemicals
I have argued that this is not the case.
> I could just as well say, "This key fob on my desk is worth $1 million!" My subscription to and fabrication of that value doesn't give it worth and meaning.
Then why does God saying it is so give it any more value? Isn't his perspective just one among others? We might be limited in our perceptions, but that doesn't mean we can't get at some parts of the truth.
> So I guess by "meaning" I mean some kind of intrinsic purpose, value, and significance.
Why does something always need a purpose to be significant? Some things might (in many situations, a hammer will need to be fit for purpose to be considered valuable), but what is the purpose of God, for example? What is the purpose of his kingdom? Isn't it an end in itself?