Contemporary usage has modified "belief in all religions" to refer more to an acceptance of the legitimacy of all
religions. The
Oxford English Dictionary elaborates that an omnist believes "in a single
transcendent purpose or cause uniting all things or people." Omnists interpret this to mean that all religions contain varying elements of a common truth, that omnists are open to potential truths from all religions. The
Oxford dictionary defines an omnist as "a person who believes in all faiths or creeds; a person who believes in a single transcendent purpose or cause uniting all things or people, or the members of a particular group of people."
Edward Herbert, 1st Baron Herbert of Cherbury, considered the first Deist, argued that all religions were true. In the poem
All Religions are One,
William Blake professed that every religion originated from God's revelation.
Henry Stubbe and other
Socinians syncretized Unitarianism with
Islamic theology.
Unitarian Universalism, which grew out of the Protestant Reformation, is congruent with Omnism, and some congregations in the
Unitarian Universalist Association explicitly attest to the category of Omnism. Other notable interfaith organizations include the
Church for the Fellowship of All Peoples and The
Parliament of the World's Religions was the first organization with the goal to unite all religions. == Notable omnists ==