The Ancient Scourge
Long before Bitcoin, Wall Street, or even the Roman Denarius, there was debt. And where there is debt, there is interest. But for most of human history, charging interest—known as usury—wasn’t just a bad business practice; it was a sin against God.
A comprehensive study titled “The Discourse of Usury in the Views of Islam and Christianity” (Lohlker, Tumwa, & Samad, 2022) dives deep into the Torah, the Bible, and the Qur’an to map out a fascinating theological consensus. The researchers argue that before the Abrahamic religions formalized their laws, the Babylonian civilization (3000 BC) had already collapsed into humanitarian crises due to predatory lending.
Today, the global debt market exceeds $300 trillion. Yet, the faithful of Islam and Christianity are still wrestling with a 3,000-year-old question: Is it moral to make money from money?
The Christian Perspective – “Thou Shalt Not Bite”
In the Christian tradition, the prohibition against usury is not a New Testament invention; it is carved into the legal codes of the Old Testament. The study highlights three primary Hebrew words used to describe the sin:
- Neshek: Directly translated as “interest,” but literally means “a bite.”
- Mashsha: Refers to the act of deliberately offering a loan to trap the poor.
- Tarbith: Meaning “increase,” used primarily in Ezekiel.
The Biting Metaphor
The linguistic breakthrough in the paper is the link between Neshek (interest) and Nashak (to bite). In Numbers 21:8, the same root word describes the venomous snakes biting the Israelites. Dr. Rüdiger Lohlker, the lead author, suggests that usury is viewed as a venomous act. It does not kill the body instantly, but it destroys the life force of the borrower slowly.
The Core Commandment (Exodus 22:25-27)
The paper focuses intensely on Exodus. The verse commands: “If you lend money to one of my people among you who is needy, do not treat it like a business deal; charge no interest.”
The context is crucial. This law was given to the Israelites escaping Egyptian slavery. They were a vulnerable community. To charge interest to a “brother” in need was to replicate the oppression they had just fled. Furthermore, if a borrower gave his cloak as collateral, the lender had to return it by sunset, because the poor needed it to stay warm at night.
The New Testament Shift
Interestingly, the New Testament contains almost no direct “interest rate caps.” Instead, Jesus reframes the issue entirely. In Matthew 5:42, He says: “Give to the one who asks you, and do not turn away from the one who wants to borrow from you.”
The study notes that the absence of the word “usury” in the Gospels does not imply approval. Rather, Jesus’ teachings go beyond prohibition into radical generosity. The early Christian communities under the Roman Empire were also oppressed. For them, charging interest to a struggling neighbor was a denial of the “loving attitude” that defined the church. The Pharisees were criticized not for technical violations, but for extortion and corrupt practices (Luke 16).
The Islamic Perspective – The Gravity of Riba
If Christianity views usury as a “bite,” Islam views it as a form of warfare against God. The paper shifts its semantic analysis to Arabic, focusing on the word Riba.
Grammatically, Riba comes from raba—to increase or grow. While growth is usually good, in finance, it becomes a corrupt increase.
The Qur’anic Condemnation (Surah Al-Baqarah 2:275)
The researchers cite the most violent condemnation in religious texts: “Those who consume Riba will not stand [on the Day of Resurrection] except like one being beaten by Satan into insanity.”
The paper breaks down Riba into three distinct categories, which is critical for understanding modern Islamic banking:
- Riba Nasiah (The Big One): This is the classic loan interest. You lend $100 and get back $110. The extra $10 is Riba Nasiah. It is universally forbidden.
- Riba Fadhl (The Unequal Swap): This is a subtle form of usury the Prophet Muhammad specifically warned about. If you trade gold for gold, silver for silver, or even dates for dates, you must do it “hand to hand” and in equal measure. Exchanging 1 gram of gold for 2 grams of gold (even if it’s a different shape) is Riba Fadhl.
- Riba Jahiliyyah (The Doubling Debt): This refers to the pre-Islamic (Jahiliyyah) practice where a debtor could not pay, so the creditor said, “You may delay payment, but your debt doubles.” This compounding interest was outlawed entirely.
The Social Context
Why such strict rules? The study argues that early Islamic society was a non-market economy based on solidarity. Charging interest allowed the rich to grow richer without working, while the poor sank into slavery. The simultaneous imposition of Zakat (alms) was designed to balance the market. If the rich cannot earn through interest, they must earn through productive trade or give away their surplus.
The Modern Paradox – $3.5 Trillion and Counting
Here is where the news article finds its friction. If both religions hate interest, why does the world run on it?
The researchers point to the creation of Islamic Finance (IF) . Starting in 1963 in Egypt (Mit Ghamr), and exploding in the 1970s oil boom, the industry is projected to be worth $3.5 trillion by 2024.
To operate in a globalized world, Islamic scholars invented complex workarounds:
- Sukuk (Islamic Bonds): Instead of a debt certificate (which pays interest), Sukuk represent ownership in an asset. The “profit” comes from the lease of that asset, not the loan.
- Tokenization: The latest trend involves blockchain and crypto-Sukuk.
The paper asks a difficult question: Are these sharia-compliant products truly different from conventional interest, or are they just linguistic re-engineering?
Christianity has largely taken a different path. While the Catholic Church historically banned usury (leading to the rise of Jewish banking in medieval Europe because Jews could lend to Christians), most mainstream Protestant denominations now accept “moderate interest” as a cost of capital, not a sin.
Comparing Usury Terms Across Faiths
| Faith | Primary Term | Literal Meaning | Key Scripture | Modern Stance |
|---|---|---|---|---|
| Christianity | Neshek / Tokos | “To Bite” / “Offspring (of money)” | Exodus 22:25-27; Luke 6:35 | Mostly permitted (interest); strict prohibition for predatory lending. |
| Islam | Riba (Nasiah) | “Increase” / “Growth” | Surah Al-Baqarah 2:275-280 | Strictly prohibited (Haram); circumvented via Islamic Finance (Sukuk). |
The Three Prohibited Riba in Islam
| Type | Transaction Example | Reason for Prohibition |
|---|---|---|
| Riba Nasiah | Loan of $1,000 repaid as $1,100. | Exploitation of time; guaranteed profit without risk or labor. |
| Riba Fadhl | Trading 1kg of low-quality dates for 2kg of high-quality dates. | Opening the door to cheating and unequal exchange in staple goods. |
| Riba Jahiliyyah | Doubling the debt when the borrower defaults (compounding). | Leads to debt slavery and endless cycles of poverty. |
Conclusion: A Shared Moral Core
The paper concludes that despite 1,400 years of separation, Islam and Christianity share a common ancestor in their economic ethics. Both faiths see money as a medium of exchange, not a commodity to be sold for rent. Usury is dehumanizing—it treats a person’s desperation as a profit center.
However, the modern world has forced a schism. Christianity largely assimilated into the interest-based economy, redefining “usury” as excessive interest rather than any interest. Islam built a parallel $3.5 trillion industry to maintain the letter of the law, even as it navigates the spirit of global capital.
For the common person, the message is ancient but urgent: Beware the “bite” of the loan. Whether you read the Torah, the Bible, or the Qur’an, the poor are not a revenue stream.
Reference: Tumiwa, Krueger, Rüdiger Lohlker, and Telsy Samad. “The discourse of usury in the views of Islam and Christianity.” Tasharruf: Journal Economics and Business of Islam 7.2 (2022): 185-197.
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