Atheists were firing thunderbolts suggesting that “religion poisons everything,” as Christopher Hitchens put it in the subtitle of his book, “God Is Not Great.” Sam Harris and Richard Dawkins also wrote best sellers that were scathing about God, whom Dawkins denounced as “arguably the most unpleasant character in fiction.”

Yet lately I’ve noticed a very different intellectual tide: grudging admiration for religion as an ethical and cohesive force.

The standard-bearer of this line of thinking — and a provocative text for Easter Sunday — is a new book, “Religion for Atheists,” by Alain de Botton. He argues that atheists have a great deal to learn from religion.

“One can be left cold by the doctrines of the Christian Trinity and the Buddhist Eightfold Path and yet at the same time be interested in the ways in which religions deliver sermons, promote morality, engender a spirit of community, make use of art and architecture, inspire travels, train minds and encourage gratitude at the beauty of spring,” de Botton writes.

“The error of modern atheism has been to overlook how many aspects of the faiths remain relevant even after their central tenets have been dismissed,” he adds, and his book displays an attitude toward religion that is sometimes — dare I say — reverential.

Edward O. Wilson, the eminent Harvard biologist, has a new book, “The Social Conquest of Earth,” that criticizes religion as “stultifying and divisive” — but also argues that religion offered a competitive advantage to early societies. Faith bolstered social order among followers and helped bind a tribe together, he writes, and that is why religion is so widespread today. And he tips his hat to the social role of faith:

“Organized religions preside over the rites of passage, from birth to maturity, from marriage to death,” Wilson writes, adding: “Beliefs in immortality and ultimate divine justice give priceless comfort, and they steel resolution and bravery in difficult times. For millennia, organized religions have been the source of much of the best in the creative arts.”

Jonathan Haidt, a University of Virginia psychology professor, also focuses on the unifying power of faith in his new book, “The Righteous Mind.” Haidt, an atheist since his teens, argues that scientists often misunderstand religion because they home in on individuals rather than on the way faith can bind a community.

Haidt cites research showing that a fear of God may make a society more ethical and harmonious. For example, one study found that people were less likely to cheat if they were first given a puzzle that prompted thoughts of God.

Another study cited by Haidt found that of 200 communes founded in the 19th century, only 6 percent of the secular communes survived two decades, compared with 39 percent of the religious ones. Those that survived longest were those that demanded sacrifices of members, like fasting, daily prayer, abstaining from alcohol or tobacco, or adopting new forms of clothing or hairstyle.

“The very ritual practices that the New Atheists dismiss as costly, inefficient and irrational turn out to be a solution to one of the hardest problems humans face: cooperation without kinship,” Haidt writes.

The latest wave of respectful atheist writing strikes me as a healthy step toward nuance. I’ve reported on some of the worst of religion — such as smug, sanctimonious indifference among Christian fundamentalists at the toll of AIDS among gay men — yet I’ve also been awed by nuns and priests risking their lives in war zones. And many studies have found that religious people donate more money and volunteer more time to charity than the nonreligious. Let’s not answer religious fundamentalism with secular fundamentalism, religious intolerance with irreligious intolerance.

The new wave is skeptical but acknowledges stunning achievements, from Notre Dame Cathedral to networks of soup kitchens run by houses of worship across America. Maybe this new attitude can eventually be the basis for a truce in our religious wars, for a bridge across the “God gulf.” Let us pray …