He served on the President's Commission on Equal Opportunity, in the Lyndon B. Johnson Administration and was a director of the American Family Foundation, now known as the International Cultic Studies Association.

In 1965, he walked with Martin Luther King Jr. in Alabama, on the third of the Selma to Montgomery marches, and was appointed to the Equal Employment Opportunity Commission by President Johnson.

[citation needed] In 1970, when two of his congregants' children joined the Unification Church of the United States, Davis educated himself about the nature and methods of groups he considered to be cults.

Davis reported that he observed commonalities among the young people he counseled who had joined the Unification Church.

[5] In November 1976, Rabbi Davis spoke at Temple Israel of Northern Westchester, New York, on "The Moon People And Our Children".