Among works edited by Oaks is a collection of essays entitled "The Wall Between Church and State." Since becoming an apostle, Oaks has consistently spoken in favor of religious freedom and warned that it is under threat. He testified as an official representative of the church on behalf of the Religious Freedom Restoration Act during congressional hearings in 1991, and then in 1998 in favor of the Religious Land Use and Institutionalized Persons Act. This was one of few occasions on which the church has sent a representative to testify on behalf of a bill before the U.S. Congress.