Fear provokes war, diversity and tolerance promotes peace. Although "In God We Trust" was first printed on coins in it was added to our paper money in 1956 in reaction to the fear-mongering of Communism engendered by Senator (R) Joseph McCarthy.
The founding fathers were well-educated men of European descent where state religions, Catholicism and the Church of England, suppressed and persecuted other religions and Christian sects.
A collection of quotes that clearly illustrates the founding fathers deep distrust of organized religion particularly a state religion. Most of the founding fathers believed in God and were deeply spiritual.