God is mentioned in the Declaration of Independence. The same group of men were involved in framing in Constitution for the most part. They fully understood that without a basic Christian mindset the country, it laws, its traditions, its values, would become a dung heap. They fully supported Bible reading and one of the first act was to print Bibles.
As the British were marching on Concord and Lexington with orders to confiscate all guns from the colonists their rallying cry was the God gave the crown divine right to rule and to make any and all rules and laws for the colonist to follow. God said the crown monarchy was the law and the citizens had to answer to the monarchists because God said so.
All of Europe was run that way back then. Religion ruled every state and country in Europe.
The Anglican Church was the dominant church in the colonies and the majority of them SUPPORTED THE TORRIES, THE CROWN in the revolution.
After we beat them over 100,000 of those holy rollers left the states and headed to Canada and back to England, the good Torries they were.
And we kicked their ass and beat back each and every attempt from the remaining few that did want the national religion as Christianity mandated by government, wanted Washington to be King and supported government funding of Christian churches and Christian schools.
The Founders RAN LIKE HELL from any religious influences in government and that is solely why the Constitution mentions God NO WHERE, there is no national religion as that was voted down numerous times at the Continental Congress and God is not mentioned anywhere IN THE LAW, THE CONSTITUTION.
The Founders sure were smart as hell!
We are a nation of THE LAW, not men and their various and changing like the wind religious beliefs.