It must be felt that there is no national security but in the nation’s humble acknowledged dependence upon God and His overruling providence. —John Adams

And more words of wisdom from a Founding Father:

We have no government armed with power capable of contending with human passions unbridled by morality and religion. Avarice, ambition, revenge, or gallantry, would break the strongest cords of our Constitution as a whale goes through a net. Our Constitution was made only for a moral and religious people. It is wholly inadequate to the government of any other. —John Adams