John Jefferson Davis is a professor of systematic theology and Christian ethics at Gordon-Conwell Theological Seminary in South Hamilton, Mass. He has expertise in world religions, theology, homosexuality, abortion, medical ethics, just war, bioethics, environmental ethics, intelligent design, business ethics and biblical ethics. He teaches a course titled “Christian Ethics: Issues Facing the Church Today.”

Richard Thompson is president and chief counsel of The Thomas More Law Center in Ann Arbor, Mich., which defended the Dover, Pa., district in a lawsuit that challenged its rules requiring the teaching of intelligent design in public schools.

Edward Tabash is a civil rights attorney and chairman of the National Legal Committee for Americans United for Separation of Church and State. He is also chairman of the First Amendment Task Force of the Council for Secular Humanism. He lives in Los Angeles, Calif. Contact via his website.

L. Martin Nussbaum is a partner at Rothgerber, Johnson & Lyons, where he represents religious institutions and schools in legal cases, including First Amendment cases. He works in Colorado Springs, Colo.

W. Cole Durham Jr. is a law professor and director of the International Center for Law and Religion Studies at Brigham Young University in Provo, Utah. He has worked on religious freedom issues around the world.

Frank Ravitch is chair of law and religion at Michigan State University and a scholar of constitutional religious freedom protections. He is author of  several books on the Constitution’s religion clauses, including Freedom’s Edge: Religious Freedom, Sexual Freedom, and the Future of America and Masters of Illusion: The Supreme Court and the Religion Clauses.

Carl Esbeck is a professor of law at the University of Missouri in Columbia, where he specializes in First Amendment issues, especially the Establishment and Free Exercise clauses.

Howard Friedman is a professor of law emeritus at the University of Toledo in Ohio. He maintains a blog called Religion Clause, which tracks religious freedom-related lawsuits in the U.S. and around the world.

Robert Ash is senior litigation counsel for national security law for the American Center for Law and Justice. He is also a professor of law at the law school at Regent University in Virginia Beach, Va.