Along with marriage and the family, religion experienced a revival in the postwar United States. The arms race between the United States and the Soviet Union heightened the dangers of international conflict for ordinary citizens, and the social and economic changes that accompanied the Cold War intensified personal anxiety. Churchgoing underscored the contrast between the United States, a nation of religious worship, and the “godless” communism of the Soviet Union. The link between religion and Americanism prompted Congress in 1954 to add “under God” to the pledge of allegiance and to make “In God We Trust” the national motto. Even President Dwight D. Eisenhower joined a church for the first time in his life.

Americans turned in great numbers to religious worship. Between 1940 and 1950, church and synagogue membership rose by 78 percent, and more than 95 percent of the population professed a belief in God. Yet religious affiliation appeared to reflect a greater emphasis on togetherness than on specific doctrinal beliefs. Theologian Will Herberg wrote that this religious revival constituted “religiousness without religion.” It offered a way to overcome isolation and embrace community in an increasingly alienating world. “The people in the suburbs want to feel psychologically secure, adjusted, at home in their environment,” Herberg explained. “Being religious and joining a church is . . . a fundamental way of ‘adjusting’ and ‘belonging.’”

Television also helped spread religiosity into millions of homes. The Catholic bishop Fulton J. Sheen spoke to a weekly television audience of ten million and alternated his message of “a life worth living” with attacks on atheistic Communists. The Methodist minister Norman Vincent Peale, also a popular TV figure, combined traditional religious faith with self-help remedies prescribed in his best-selling book The Power of Positive Thinking (1952). The Reverend Billy Graham, a preacher from Charlotte, North Carolina, who became the greatest evangelist of his era, was a traveling minister who blended his call for Americans to accept Jesus Christ into their hearts with fervent anticommunism. Graham used his considerable oratorical powers to preach at huge outdoor crusades in baseball parks and large arenas, which were broadcast on television. Religious Americans derived a variety of meanings from their religious experiences, but they embraced Americanism as their national religion. A good American, one magazine proclaimed, could not be “un-religious.”