Usury in Christendom: The Mortal Sin that Was and Now is Not

Usury in Christendom by Michael Hoffman examines how the Christian West shifted from treating interest-bearing loans as a mortal sin to building its financial system around debt and profit. The book constructs a historical and theological narrative that traces this shift from the biblical condemnation of usury to its full adoption in contemporary global finance. Hoffman anchors his work in the moral framework of early Christianity and medieval Church teachings, then follows the incremental legal, cultural, and ideological concessions that made modern capitalism possible.

The Moral Status of Usury

Hoffman identifies the early Church’s condemnation of usury as a foundational moral commitment. Roman thinkers like Cicero classified lending at interest alongside murder. Early Christian authorities regarded interest as theft. The core theological claim rested on the belief that charging interest involved selling time—an intangible and divine creation that no human could own. Usury was viewed as profiting from nothing, extracting gain without labor or product. The act of lending money at interest commodified a gift of God and violated natural law.

The Church formalized this position through canon law and ecclesiastical punishment. A usurer risked excommunication, denial of communion, and exclusion from Christian burial. The magnitude of these penalties reflected the spiritual danger believed to result from usurious behavior. A Christian who died unrepentant in the sin of usury jeopardized his eternal salvation. The prohibition was absolute. Charging even 1% was no less sinful than 100%.

Economic Life Before Interest

Hoffman paints a picture of a society structured around economic restraint and distributive justice. He invokes the example of “Merry England,” a term used to describe a medieval agrarian economy grounded in common ownership, just pricing, and widespread subsistence. Based on research from Oxford historian Thorold Rogers, Hoffman highlights that a laborer in this system could work for just 14 weeks a year and still support a household. The remaining time was spent in community life, religious observance, and rest.

Wealth did not accumulate through financial instruments. Instead, value emerged from labor, production, and barter. Farmers, craftsmen, and tradespeople exchanged real goods and services. The system ran on obligations and bonds of mutual aid rather than contracts designed to produce profit from credit. Money served as a means of exchange rather than a source of independent value.

The Biblical Jubilee

The book presents the biblical concept of Jubilee as a social and economic safeguard. Originating in the Old Testament, Jubilee required that all debts be forgiven every seven years. In the 50th year, land returned to original family owners and servitude was released. This system ensured that no household or lineage would be permanently dispossessed. Hoffman links this with the inscription on the Liberty Bell: “Proclaim liberty throughout the land,” a direct quotation from Leviticus describing Jubilee. The theology of forgiveness and reset structured ancient Hebrew and early Christian approaches to economics.

The Reversal Begins

Hoffman identifies a long historical transition that turned usury from mortal sin into normalized practice. The “great reversal,” as he calls it, began with theological exceptions and legal evasions. Church thinkers like John Eck introduced justifications for interest under limited conditions, coinciding with pressures from powerful financial actors. Hoffman suggests that Eck’s permissiveness was not merely academic but shaped by proximity to banking dynasties who stood to benefit.

The Reformation introduced further complexity. Protestant leaders like John Calvin questioned the universality of the prohibition, suggesting that context and intent mattered. Calvin’s approach, described as “situation ethics,” treated usury as a moral issue dependent on outcomes rather than absolute law. In this climate, moral clarity gave way to pragmatic flexibility.

Hoffman also names John Locke as a key figure in reframing the moral vocabulary around money. Locke’s defense of interest as a legitimate expression of economic liberty converted a theological prohibition into a political right. Lending at interest became a form of contractual freedom rather than spiritual offense.

The Triple Contract and Legal Innovations

To show how doctrine broke down through technicality, Hoffman explains the method of the “triple contract”—a legal workaround that disguised interest as a bundle of unrelated transactions. Instead of issuing a loan directly, lenders created a business partnership, bought insurance, and pre-sold profits. Each component appeared lawful on its own. Taken together, they replicated the effect of an interest-bearing loan.

The structure allowed Christian lenders to operate in financial markets while formally obeying canon law. In practice, they collected interest while avoiding the penalties of sin. Hoffman treats this innovation as central to the dissolution of the usury ban. Theological integrity eroded under legal cunning.

Consequences in the Modern World

As usury became embedded in financial systems, its moral status collapsed. Hoffman contends that what had been universally condemned became not only permissible but virtuous. Profit through interest emerged as a moral good. Economists like Ludwig von Mises rejected Christian suspicion of wealth. According to Hoffman’s reading, von Mises viewed Jesus’ teachings on riches as incitements to class warfare. In this view, economic power deserved insulation from spiritual critique.

Hoffman traces this ethical inversion into the philosophy of Ayn Rand. In her framework, rights attach not to people in need but to the capacity to transact. The right to make a deal supersedes claims to shelter, food, or wage. Hoffman treats this ethic of “naked self-interest” as the logical endpoint of the usury revolution. By detaching economics from moral obligations, it installs transaction as the highest law.

The Cultural Cost of Usury

The consequences extend beyond economics. Hoffman argues that usury reshaped the cultural psyche. It dissolved communal bonds and replaced them with contracts. It redefined virtue in terms of profit. Where once Christian charity governed economic life, now only capital flow determines social value. The lender replaces the steward. The debtor replaces the citizen. Interest creates hierarchy not by merit or labor, but by the power to create obligation.

In Hoffman’s critique, this transformation undermines the very concept of freedom. Debt introduces control through abstraction. Whereas feudal ties were visible and mutual, financial ties operate through compulsion masked as agreement. A person may enter a contract freely, but repayment can structure his life entirely. The borrower lives within a system not of his making but enforced by the laws of compound interest and creditor priority.

Usury and Ideological Convergence

Hoffman concludes by placing radical capitalism and communism in parallel. Both, in his view, elevate materialism and subordinate the spiritual. Whether by state mandate or market freedom, the same structure rules: material acquisition over moral formation. Hoffman frames this convergence not as metaphor but as diagnosis. Systems of governance that ignore usury’s ethical challenge replicate its consequences—alienation, inequality, and commodification of human life.

By removing moral limits from finance, society orients itself toward accumulation. Production matters less than leverage. Security replaces solidarity. In this world, the spiritual question—what is just, what is right—no longer enters into economic calculation. The price of everything becomes measurable, and the value of nothing transcends exchange.

Recovery and Resistance

Hoffman offers no simple solution. His narrative functions as warning, not prescription. Yet embedded in his account is a vision of alternative: economies ordered toward sufficiency, justice, and mutual support. He resurrects the idea that moral theology belongs at the center of public life. The question of what may be sold, and at what cost, concerns not only economists but pastors, neighbors, and the governed.

To reintroduce the language of sin into economics is not to moralize profit, but to delimit it. The act of naming usury as theft revives a lost grammar of economic ethics. In Hoffman’s vision, this grammar does not reject finance but places it under law—divine, not contractual.

A Challenge to the Foundations

Usury in Christendom does not ask whether interest should be regulated or capped. It demands to know whether charging for time itself constitutes an act of moral violation. The book revives the medieval logic that money, unlike tools or goods, does not reproduce. It asks whether economies can flourish when founded on scarcity and extraction.

Hoffman’s inquiry presses readers to consider the legitimacy of structures so normalized they escape critique. The modern economy runs on credit. Banks create money through debt. Governments encourage borrowing to stimulate growth. Consumers finance necessities and indulgences alike. What if the system that enables this prosperity also distorts human dignity?

The book ends not with reform but with revelation. Hoffman seeks to uncover a rupture in Western moral development. That rupture, he insists, occurred when Christendom abandoned the clarity of its teaching and embraced the calculus of debt. In naming this act, he offers a lens through which modernity itself may be reexamined. The cost of usury, measured not in interest but in justice, becomes a question no civilization can afford to ignore.