"Conservative commentators are no doubt blowing kisses in the direction of UC Riverside professor Michelle Raheja, whose odd interpretation of oppression has given them endless fodder for discussion and mockery."
b) freedom of thought, belief, opinion and expression, including freedom of the press and other media of communication;
This was notable and precedent setting. Under the "old" political orders, governments were connected to specific sectarian theologies and it would be expected that political leaders' "God talk" endorsed the official state theology, be it Roman Catholicism, Anglicanism, Presbyterian or whatnot. Well there was no "official" theology for Washington and company to endorse. But they, through their public God talk established an "unofficial theology" or a "civil religion." And that civil religion specifically avoided invoking orthodox Trinitarian doctrine or Jesus Christ.
Why is this important? David Barton and the other Christian Nationalists are sympathetic to the notion that the organic law of the United States is "Christianity generally." Well that begs the question, what is Christianity? To most evangelicals, Roman Catholics and capital O Orthodox Christians, Christianity is synonymous with orthodoxy (Christ's divine nature as God the Son, second person in the Trinity, the Atonement, etc.) A theological system that rejects these tenets is "not Christianity" whatever it calls itself.
Well, it would follow then, if Washington intended to establish "Christianity generally" -- which defines as orthodox Trinitarian doctrines under which the different Christian sects were united -- as the "civil religion" of America, his public God talk would often be done in the name of the "Father, Son, and Holy Spirit," the infallibility of the Bible and would cite verses and chapters of scripture as "trumping" authority.
But Washington's public God talk [for instance the content of Washington's first Thanksgiving Proclamation] does none of this.