When, in Obergefell v. Hodges, the US Supreme Court held that bans on same-sex marriage violate the Constitution, Christian conservative legal organizations (CCLOs) decried the ruling. Foreseeing an "assault against Christians," Liberty Counsel president Mat Staver declared, "We are entering a cultural civil war." Many would argue that a cultural war was already well underway; and yet, as this timely book makes clear, the stakes, the forces engaged, and the strategies employed have undergone profound changes in recent years.

In Defending Faith, Daniel Bennett shows how the...