In 1986, he was named Nicholas deB. Katzenbach Professor of Law, and later Professor Emeritus. He was also the George W. Crawford Professorial Lecturer in Law. At the Yale Law School, Marshall taught courses in constitutional law, federal jurisdiction, and political and civil rights. Among his most innovative and well-known courses was "The Limits of the Law," which he co-taught at first with Professor Joseph Goldstein and later with both Professor Goldstein and Aharon Barak, Chief Justice of the Israel Supreme Court. He also co-taught a course on Religion and the Law with Professor Perry Dane at a time when that subject was rarely taught as a course to itself at major law schools.