Jacoby has spoken about the important role secularism played in the development of political and social events in the history of the United States, and she has argued that this fact is often written out of American history by the religious right. One of the most important events in which Jacoby believes secularism played an enormous part was the writing of the United States Constitution. She has explained that it is a false claim that the founders of the United States intended the government to be religious. She believes instead that they were strongly in favor of the separation of Church and State, and that they purposely omitted the word "God" from the Constitution, partly influenced by the horrors that occurred in places such as France under non-secular rule, as well as inspired by the ideas of the Age of Enlightenment.