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.
Constitution Lesson Plans for 8th Grade American History
The First Amendment to the US Constitution - Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assembl
Why America Didn't Trust God Till The 1950s (And 6 Other Things You Might Not Know)