Exploring the Meaning of Eleos in Greek

ἔλεος means “mercy.” In the passages where it appears, it stands at the center of Jesus’ teaching about what God desires, and it also names God’s own action toward people across generations and toward those who receive help.

Occurrences

Matthew 9:13 — “But you go and learn what this means: ‘I desire mercy, and not sacrifice,’ for I came not to call the righteous, but sinners to repentance.”

Here ἔλεος is set in a direct contrast: mercy is what is “desired,” while “sacrifice” is placed on the other side of the comparison. The saying frames Jesus’ mission—his coming “to call… sinners to repentance”—as consistent with that desire for mercy, so that mercy functions as a key for understanding his association with those needing repentance.

Matthew 12:7 — “But if you had known what this means, ‘I desire mercy, and not sacrifice,’ you wouldn’t have condemned the guiltless.”

In this second citation of the same line, ἔλεος is tied to judgment: lack of grasping mercy leads to condemning “the guiltless.” Mercy is not only a desired quality; it is presented as the interpretive lens that would have prevented a wrongful verdict.

Matthew 23:23 — “Woe to you, scribes and Pharisees, hypocrites! For you tithe mint, dill, and cumin, and have left undone the weightier matters of the law: justice, mercy, and faith. But you ought to have done these, and not to have left the other undone.”

ἔλεος appears among “the weightier matters of the law,” set alongside “justice” and “faith.” The rebuke does not deny careful tithing; instead it locates mercy within the heavier moral obligations that must not be “left undone.” Mercy here is portrayed as something to be practiced, not merely affirmed.

Luke 1:50 — “His mercy is for generations of generations on those who fear him.”

In this line of praise, ἔλεος is explicitly God’s (“His mercy”) and it stretches across time: “for generations of generations.” It is also directed toward a defined group, “those who fear him,” so mercy is described as both enduring and relational, given within a posture of reverence.

Luke 1:54 — “He has given help to Israel, his servant, that he might remember mercy,”

Mercy is linked to concrete aid: God “has given help” with the purpose “that he might remember mercy.” In this setting, ἔλεος is not abstract sentiment; it is what God keeps in view as he helps Israel, his servant.

Luke 1:58 — “Her neighbors and her relatives heard that the Lord had magnified his mercy toward her, and they rejoiced with her.”

Here ἔλεος is something the Lord “magnified… toward her,” and the community responds with joy. Mercy is portrayed as publicly recognizable in its effects, to the point that neighbors and relatives “heard” of it and joined in rejoicing.

Luke 1:72 — “to show mercy toward our fathers, to remember his holy covenant,”

In this purpose statement, ἔλεος is paired with covenant memory: God acts “to show mercy… [and] to remember his holy covenant.” Mercy is presented as an expression of faithfulness to what God has bound himself to remember, reaching “toward our fathers.”

Luke 1:78 — “because of the tender mercy of our God, by which the dawn from on high will visit us,”

ἔλεος is qualified as “tender,” and it is the stated reason (“because of”) for a coming visitation described as “the dawn from on high.” Mercy here carries a gentle texture and serves as the motive behind God’s approaching help, expressed in vivid language of light arriving.

Luke 10:37 — “He said, “He who showed mercy on him.” Then Jesus said to him, “Go and do likewise.”

In this exchange, mercy is identified by an action: someone “showed mercy on him.” Jesus’ command, “Go and do likewise,” treats mercy as a concrete pattern to imitate—an observable act directed toward another person, not a feeling kept private.

Romans 9:23 — “and that he might make known the riches of his glory on vessels of mercy, which he prepared beforehand for glory,”

Paul uses ἔλεος to describe people as “vessels of mercy.” The phrase makes mercy a defining marker of these vessels, and it is bound up with a larger purpose: that God might “make known the riches of his glory” upon them. Mercy here functions as a category of identity within God’s saving purpose and future “glory.”

Romans 11:31 — “even so these also have now been disobedient, that by the mercy shown to you they may also obtain mercy.”

ἔλεος appears twice, first as something “shown to you,” and then as something others may “obtain.” Mercy is portrayed as transferable in its effects across groups: one group’s experience of mercy becomes the context in which another may come to receive mercy as well.

Romans 15:9 — “and that the Gentiles might glorify God for his mercy. As it is written, “Therefore I will give praise to you among the Gentiles and sing to your name.””

Here ἔλεος is the reason Gentiles “glorify God.” Mercy is not merely something God gives; it becomes a ground for worship and public praise, expanding the horizon of mercy’s impact to include the Gentiles’ response of gratitude to God.

Sense and Usage

Across these occurrences, ἔλεος is consistently depicted as a decisive moral and theological reality. In Matthew’s scenes, it functions as a criterion for evaluating religious practice and judgment. The repeated contrast, “I desire mercy, and not sacrifice,” places mercy as the demanded orientation that should govern how one reads situations involving guilt and innocence, and it corrects a piety that can become preoccupied with scrupulous offerings or measurements while neglecting what is “weightier.” Within that framework, mercy is not set against careful obedience as such—tithing is acknowledged—but it is treated as indispensable and heavier, something that must not be postponed or substituted.

In Luke 1, mercy repeatedly belongs to God and is expressed in remembered action. The language ties mercy to help given (“He has given help”), to covenantal remembrance (“to remember his holy covenant”), and to the intergenerational sweep of God’s dealings (“for generations of generations”). Mercy is also described in terms that highlight its character and effect: it can be “magnified,” prompting communal rejoicing, and it can be “tender,” standing behind the promised visitation compared to a dawn. These statements locate mercy not only in God’s disposition but in God’s concrete interventions that can be observed, celebrated, and interpreted as faithfulness.

Luke 10:37 shifts the focus from divine mercy to enacted human mercy, but without changing what mercy is: it is something one “showed” to another. Jesus’ directive, “Go and do likewise,” sets mercy squarely in the realm of imitable conduct. Mercy becomes a defining mark of the person commended in the story, identified not by title or affiliation but by the act itself.

In Romans, mercy becomes a lens for understanding God’s dealings with distinct groups and God’s overarching purpose. The striking expression “vessels of mercy” presents mercy as a determining feature of those upon whom God intends to “make known the riches of his glory.” In Romans 11:31, mercy is depicted as both experienced and anticipated: it can be “shown” and it can be “obtained,” and the verse sketches a movement in which mercy’s reach extends so that more may come to receive it. Romans 15:9 then emphasizes mercy’s doxological outcome: God’s mercy draws forth glorifying and praise, including among the Gentiles. Taken together, these uses show mercy as desired by God, exercised by God, practiced by people, and celebrated by those who recognize it.

Imagery

The passages supply a set of concrete pictures for mercy without turning it into something vague. Mercy is desired over sacrifice, counted among weightier matters, magnified toward an individual, shown by one person to another, and spoken of as tender like a dawn that “will visit us.” Even when Paul describes “vessels of mercy,” the image keeps mercy close to lived experience: people are depicted as recipients shaped by mercy, and that reception leads to glory made known and praise offered to God.

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).