Catholic Commentary
Warning Against Slandering a Servant
10“Don’t slander a servant to his master, lest he curse you, and you be held guilty.
Proverbs 30:10 warns against slandering a servant to his master, exploiting the servant's social powerlessness and vulnerability to false accusation. The verse teaches that such slander incurs moral guilt and invites the servant's curse, which carries force because God hears the oppressed.
Slander against the powerless is not merely unkind—it invokes a curse that God himself enforces, because the vulnerable hold moral authority in his economy.
Agur's placement of this warning immediately before his "Four things the earth cannot bear" (vv. 21–23) is also telling — injustice against the powerless is among the deepest disorders in the created moral order.
Catholic tradition brings a uniquely rich framework to this single verse, weaving together the theology of the tongue, social justice, and the dignity of the lowly.
The Eighth Commandment and Sins of Speech The Catechism of the Catholic Church treats calumny (false accusation) as a grave offense against both truth and justice: "Calumny harms the reputation of its victims and gives occasion for false judgments concerning them" (CCC 2477). Proverbs 30:10 is precisely a description of calumny — speaking falsely about a servant to manipulate the master's judgment. The Catechism further notes that "every offense committed against justice and truth entails the duty of reparation" (CCC 2487), a demand that is all the more pressing when the victim is powerless to defend himself.
The Preferential Option for the Poor Catholic Social Teaching, rooted in Scriptural texts like this one, insists on a "preferential option for the poor" — a special moral attentiveness to the vulnerable. Gaudium et Spes (no. 27) lists among gravest injuries against human dignity those acts that "offend human dignity," including false accusations. Pope Leo XIII in Rerum Novarum and Pope Francis in Laudato Si' (no. 158) both affirm that exploitation of those with no social recourse is a structural sin.
The Church Fathers on the Tongue St. James famously warns that "the tongue is a fire, a world of iniquity" (James 3:6). St. John Chrysostom, commenting on the social dynamics of slander, writes: "Nothing is so swift as slander, nothing more unjust; it strikes the innocent and elevates the wicked." St. Thomas Aquinas classifies detraction and calumny as distinct sins against justice (Summa Theologiae II-II, q. 73–74), both of which are present in the action Agur condemns.
The Moral Authority of the Oppressed The servant's curse finding its mark is theologically significant. Catholic tradition, following Exodus 22:23 and Sirach 35:17–18, affirms that God hears the cry of the oppressed with particular urgency. The slanderer who targets the voiceless does not escape divine judgment — indeed, they hasten it upon themselves.
Proverbs 30:10 speaks with sharp relevance into the culture of the contemporary workplace, social media, and parish life. The "servant" of Agur's day finds his modern counterpart in the subordinate employee, the undocumented worker, the church volunteer, the junior colleague — anyone whose livelihood, reputation, or standing depends on the goodwill of someone more powerful. To whisper negative reports, exaggerate failures, or weaponize grievances against such a person to their supervisor or boss is precisely the sin this verse names.
For the Catholic today, this verse is a practical examination of conscience: Have I ever complained about a coworker to their manager out of rivalry or irritation rather than genuine concern? Have I shared unflattering information about someone in my parish to a priest or leader? Have I used truth selectively — which is still a form of slander?
The verse also challenges Catholics to consider who in their community is "servant-like" — structurally vulnerable, unable to push back. Immigrant workers, part-time employees, the recently hired, the socially awkward — these are the ones whose reputations we can most easily damage and whose curses, Agur reminds us, are not without weight before God.
Commentary
Literal and Narrative Analysis
Proverbs 30:10 reads in full: "Do not slander a servant to his master, or he will curse you, and you will be found guilty." The verse is a two-part admonition structured as a prohibition followed by a consequence — a form common in wisdom literature and in ancient Near Eastern moral instruction.
"Do not slander a servant to his master" The Hebrew verb here is lāšan (לָשַׁן), literally "to tongue" someone — a vivid, physical image of weaponizing the faculty of speech. It means to accuse falsely, to whisper malicious or distorted reports about another person to someone who holds authority over them. The target is a servant (ʿeved), the most socially exposed figure in the ancient household — one who cannot easily defend himself before his master, who has no legal standing to dispute the accusation, and who is entirely dependent on his master's trust and goodwill. This power asymmetry is crucial: the slanderer exploits not only the servant's reputation but also his structural vulnerability.
Agur's warning is strikingly counter-cultural in the ancient world, where gossip about servants to masters was a common mechanism of social manipulation and advancement. To whisper against a servant could result in punishment, sale, or worse — consequences out of all proportion to any supposed offense. Agur names this for what it is: an act of cruelty disguised as information-sharing.
"Or he will curse you, and you will be found guilty" The consequence operates on two levels. First, the social-moral level: the wronged servant, finding himself unjustly accused and powerless, may invoke a curse (yiqallel) upon the one who maligned him. In the ancient Israelite worldview, the curse of the innocent carries real force — not as magic, but because God hears the cry of the oppressed (cf. Exodus 22:22–24). Second, the legal-moral level: "you will be found guilty" (wᵉʾāšamtā) — the slanderer becomes liable, incurring real guilt before God. The verse thus teaches that the act of slander is not merely socially imprudent but morally culpable. The apparent victim — the servant — holds a kind of moral authority that can expose and indict the slanderer.
Typological and Spiritual Senses In the spiritual sense, the "servant" (ʿeved) resonates with the great Servant figures of Scripture — Joseph sold into slavery (Genesis 37), the Suffering Servant of Isaiah (Isaiah 53), and ultimately Christ himself, who "took on the form of a servant" (Philippians 2:7). To slander the lowly is, in a mystical sense, to slander Christ present in them (Matthew 25:40). The verse thus carries an implicit Christological weight: the servant's curse reflects the moral authority of the marginalized in God's economy.