Evangelism has changed in the past quarter century. The ways Christians share, how often they engage in spiritual conversations and their goals for sharing faith are different. And in a culture where relativism is the norm and fewer believe in absolute truth, the attitudes and responses of those who hear the gospel have also evolved.

Social media and mobile devices have fundamentally changed the way we communicate—particularly about faith. Substantive spiritual conversations have become harder not only because of 280-character limits but also because of shifts in the way the public perceives or subscribes to religion in the first place. For his most recent book, Learning to Speak God from Scratch, Barna worked with religion columnist Jonathan Merritt to interview U.S. adults for whom spiritual conversations are rare or nonexistent to find out why they don’t talk more often about faith. This research can also be found in Spiritual Conversations in a Digital Age, a report created in partnership with Lutheran Hour Ministries. The infographic excerpt below outlines the most common reasons for the reluctance of American adults to engage in spiritual conversations.

People who don’t talk very often about faith offer different reasons, but most of these fall into two broad categories: avoidance and ambivalence. For instance, the two avoidant responses (among the top four) given for not engaging in conversations are: “Religious conversations always seem to create tension or arguments” (28%) and “I’m put off by how religion has been politicized” (17%). The other two responses indicate ambivalence: “I’m not religious and don’t care about these kinds of topics” (23%) and “I don’t feel like I know enough to talk about religious or spiritual topics” (17%).

Here’s the full list of options:

- Religious conversations always seem to create tension or arguments: 28%