This article describes the culture of activist black Christian congregations that propelled campaigns to dismantle legalized racial segregation and advocate for equal justice. Historically, as the imperfections of American democracy were exposed, the most marginal people in the society acted persistently and repeatedly to extend the benefits of democracy to all citizens. The article highlights the distinctive social and intellectual contributions of the secular activist W. E. B. Du Bois and social gospel minister Martin Luther King. The author sees the contemporary discussion and faith-based mobilization around reversing mass incarceration as an outgrowth of the civil rights movement. Finally, the article suggests that leadership for the next global human rights revolution is likely to emerge from students and young leaders who are committed to radically inclusive conceptions of democracy, equality, and social justice.