Exploring the Meaning of Koinonos in Greek

κοινωνός expresses the idea of a “participant,” someone who shares in an activity, relationship, or experience. In the New Testament it appears in settings that range from shared guilt, to business partnership, to shared worship, suffering, encouragement, and future hope.

Occurrences

Matthew 23:30: “and say, ‘If we had lived in the days of our fathers, we wouldn’t have been partakers with them in the blood of the prophets.’”

Here κοινωνός frames a claim of non-involvement: the speakers insist they would not have been “partakers” in their ancestors’ violent wrongdoing. The word places responsibility in relational terms—participation “with them”—so that complicity is pictured not merely as individual action but as sharing in a corporate deed (“the blood of the prophets”).

Luke 5:10: “and so also were James and John, sons of Zebedee, who were partners with Simon. Jesus said to Simon, “Don’t be afraid. From now on you will be catching people alive.””

In the fishing context, κοινωνός depicts a working partnership: James and John stand in a shared enterprise “with Simon.” The word contributes the idea of coordinated participation—people joined in one undertaking—providing the relational backdrop for Jesus’ direct address to Simon and the shift in vocation announced in the same scene.

1 Corinthians 10:18: “Consider Israel according to the flesh. Don’t those who eat the sacrifices participate in the altar?”

Paul uses κοινωνός to argue from a visible practice: eating sacrificial food makes one a participant “in the altar.” The focus is not on private intention but on the act’s communal and cultic linkage; participation is created by sharing in what is offered and eaten, connecting the eater to the altar as the locus of the rite.

1 Corinthians 10:20: “But I say that the things which the Gentiles sacrifice, they sacrifice to demons, and not to God, and I don’t desire that you would have fellowship with demons.”

In this warning, κοινωνός marks a morally charged participation: “fellowship with demons.” The word sharpens the stakes of pagan sacrifice by portraying involvement as shared association. Participation is not portrayed as neutral contact; it is a kind of belonging-with, the opposite of the devotion Paul affirms as due to God.

2 Corinthians 1:7: “Our hope for you is steadfast, knowing that, since you are partakers of the sufferings, so you are also of the comfort.”

κοινωνός shapes pastoral confidence: the community’s shared experience of “the sufferings” entails shared experience “of the comfort.” Participation here is paired—suffering and comfort are linked realities that can be possessed together. The word contributes a logic of solidarity: what is shared in hardship is also shared in encouragement.

2 Corinthians 8:23: “As for Titus, he is my partner and fellow worker for you. As for our brothers, they are the apostles of the assemblies, the glory of Christ.”

With Titus, κοινωνός identifies a ministry partnership: “my partner and fellow worker for you.” The term portrays Titus not simply as an assistant but as a participant alongside Paul in labor directed toward the Corinthian believers. The surrounding description (“for you”) locates this participation in service that benefits others, not merely internal companionship.

Philemon 1:17: “If then you count me a partner, receive him as you would receive me.”

Paul appeals to κοινωνός as the basis for a concrete request. If Philemon considers Paul a “partner,” that shared standing should shape how Philemon acts: “receive him as you would receive me.” Participation here functions as relational capital; partnership carries obligations expressed in hospitality and acceptance.

Hebrews 10:33: “partly, being exposed to both reproaches and oppressions; and partly, becoming partakers with those who were treated so.”

κοινωνός describes participation that takes the form of identifying with suffering people. The community is portrayed as sharing in public hardship in two ways: directly (“exposed to… reproaches and oppressions”) and indirectly, by becoming participants “with those who were treated so.” The word emphasizes chosen solidarity—standing with the afflicted as a shared experience.

1 Peter 5:1: “Therefore I exhort the elders among you, as a fellow elder, and a witness of the sufferings of Christ, and who will also share in the glory that will be revealed.”

Here κοινωνός undergirds exhortation through shared identity and shared destiny. The speaker addresses “the elders” as one among them (“a fellow elder”) and then speaks as one who “will also share in the glory that will be revealed.” Participation is oriented forward: it is a promised share in “glory,” set alongside testimony to “the sufferings of Christ,” and it supports the authority and tone of the exhortation.

2 Peter 1:4: “by which he has granted to us his precious and exceedingly great promises; that through these you may become partakers of the divine nature, having escaped from the corruption that is in the world by lust.”

κοινωνός expresses an elevated kind of participation: becoming “partakers of the divine nature.” The verse places this participation within a sequence—God grants promises; through them believers become participants; and this is associated with escaping corruption. The word contributes the idea of a real share, grounded in what is given (“promises”) and evidenced by moral deliverance (“escaped… corruption”).

Sense and Usage

Across these passages κοινωνός consistently marks participation as a bond created by sharing: sharing blame, sharing work, sharing worship, sharing suffering, sharing comfort, and sharing future glory. The word’s force is relational—participation is frequently expressed with “with,” linking one party to another (Matthew 23:30; Luke 5:10; Hebrews 10:33), or linking persons to a sphere of action and allegiance (1 Corinthians 10:18; 1 Corinthians 10:20). In each case, the term identifies not a detached observer but someone joined to what is happening.

Several occurrences show that participation can be morally weighty. In Matthew 23:30, being a participant “in the blood of the prophets” would mean sharing in violent guilt; the word therefore serves as a category for complicity. In 1 Corinthians 10:20, participation becomes “fellowship with demons,” so the term frames religious involvement as personal association, not mere attendance. In contrast, Hebrews 10:33 portrays participation as courageous solidarity with the mistreated, and 2 Corinthians 1:7 presents it as shared endurance that opens into shared “comfort.” In these texts, κοινωνός is not just about being present; it describes being bound to an outcome—whether shameful, dangerous, costly, or consoling.

Other occurrences highlight participation as partnership and shared labor. Luke 5:10 uses κοινωνός for business partners in fishing, where shared work implies common purpose and mutual dependence. 2 Corinthians 8:23 similarly uses the term for cooperative ministry (“partner and fellow worker for you”), showing how participation can characterize coordinated service aimed at others’ good. Philemon 1:17 then turns partnership into a practical appeal: if partnership is real, it should shape how a person is received. In these passages, κοινωνός carries social implications—recognizing someone as a participant alongside oneself creates expectations for action.

Finally, 1 Peter 5:1 and 2 Peter 1:4 push participation into the realm of promised hope and transformation. Sharing “in the glory that will be revealed” (1 Peter 5:1) and becoming “partakers of the divine nature” (2 Peter 1:4) present participation as something granted and anticipated, tied to exhortation and moral escape. Even here the word keeps its core emphasis: participation means a real share in what is named, whether “glory” or “divine nature,” and it is connected to lived consequences in the surrounding clauses.

Imagery in Context

The passages collectively picture participation as a kind of closeness: seated at an altar eating sacrificial food (1 Corinthians 10:18), standing in fellowship that must be refused when it binds one to demonic worship (1 Corinthians 10:20), linking arms with the oppressed under public reproach (Hebrews 10:33), and extending welcome that treats another as oneself (Philemon 1:17). In this range of scenes, κοινωνός is the word that turns actions and relationships into shared ownership—of guilt, labor, suffering, comfort, or promised glory.

Sources: Lexical data from Strong’s Exhaustive Concordance and the Translators Brief Lexicon of Extended Strongs for Greek (STEPBible, CC BY). Occurrence data from the Translators Amalgamated Greek New Testament (STEPBible, CC BY). Scripture quotations from the World English Bible (public domain).