Constitutional, but not politically correct, then.
Just like the pledge of allegiance.
I think the "under God" part of the pledge of allegiance can be modified to include whatever you want. If you substituted, "one nation under the sovereign power of our serene, illustrious, excellent, and so forth president, indivisible, with liberty and justice for all" I don't think anyone's going to stop you. Yes, I took part of that from Dickens. It was an example.
Ayn Rand=objectivist. Fred N was not.
And the issue with the pledge of allegiance is exactly what people's interpretations are regarding "the government can not dictate to the population what to believe or what religion to practice." If you have as a pledge of allegiance the inclusion of the idea of God, the government is dictating to the population to believe in God. Because only people who believe that such a God exists can sincerely make this pledge. That's the issue.
And yes, I do believe that such a God exists, but I'm not going to twist people's arms to get them to have the same beliefs so that they can honestly pledge allegiance to their country. Constantine?
In the declaration of independence, not all the founders had the same perspective of who this God was, but they still threw it in anyway. Probably for political reasons. Was it unconstitutional? Well... was the 19th amendment unconstitutional?