As one who has been posting from a "thankgiving to God" perspective, I can only say thank you for posting this one, for the link-quote, and for the post-quote analysis. If our liberty is not from God, then our thanks to any human-ordained government is futile.
Just to be clear: my thanks do indeed go to a personal God. And there are many Christian/Jewish thinkers whom I respect. But at the same time my own family's "faith tradition" is secular humanism, and I belonged to a quasi-Christian cult as a teenager, so I'm a little sensitive about effusive professions of faith: I personally prefer to see these matters understated a bit (and I think there is a scriptural basis for this, BTW).
The genius of John Hinderaker's post is that it clarifies the relationship between the Judeo-Christian tradition and our system of government, at a time that many claim explicitly that our system rests on a complete divorce between the State and anything remotely resembling a Church. It does not.