During the late nineteenth century’s Gilded Age, Protestant philanthropists, policymakers, social reformers, and religious leaders often claimed that charity “pauperized” the poor by cultivating dependence and preventing them from helping themselves. Acting on this theory of pauperization, prominent social Christians developed innovative forms of charity with support from wealthy industrialists, who hoped to ameliorate poverty in a way that maintained industrial capitalism and its fundamental social order. To explore the influence and legacy of pauperization, this article examines the phenomenon of urban “institutional churches,” an ecclesiastical form that featured a wide array of buildings, organizations, and subsidiary institutions. Rather than surveying the entire institutional church movement, the article draws extensively on the previously unexamined records, meeting minutes, and congregational publications of a pioneering and paradigmatic institutional church in New York City. Led and bankrolled by the financier J. Pierpont Morgan, this church became known as “the most notable institution of its kind in the world.” While historians typically have depicted institutional churches as early expressions of the Social Gospel’s progressive response to poverty, institutional churches illustrate how conservative social Christians used churches to justify their belief in the power of plutocratic private philanthropy over a more active redistributionist state and tax-funded welfare policies.