Exploring the Meaning of Katergazomai in Greek

κατεργάζομαι expresses bringing about a result—working something out so that it is produced. In the passages cited here it is used for what actions, law, sin, suffering, and Christ’s work through a person bring about in lived experience.

Occurrences

“Likewise also the men, leaving the natural function of the woman, burned in their lust toward one another, men doing what is inappropriate with men, and receiving in themselves the due penalty of their error.” (Romans 1:27)

Here the verb frames conduct as an active doing that yields a consequence. The verse places “men doing what is inappropriate” alongside “receiving in themselves the due penalty,” so the action is pictured as producing an outcome that comes back upon the doers.

“oppression, and anguish on every soul of man who does evil, to the Jew first, and also to the Greek.” (Romans 2:9)

In this line the focus is on the effect attached to “does evil.” The verb marks evil as something carried out—an enacted practice—set in contrast with what it brings upon “every soul,” namely “oppression, and anguish,” with no distinction in principle between “Jew” and “Greek” except order (“to the Jew first”).

“For the law produces wrath, for where there is no law, neither is there disobedience.” (Romans 4:15)

The verb is used for the law’s effect: “the law produces wrath.” The sentence treats wrath not as an isolated feeling but as something brought about in the presence of law, while the second clause (“where there is no law…”) reinforces a logic of conditions and resultant effects.

“Not only this, but we also rejoice in our sufferings, knowing that suffering produces perseverance;” (Romans 5:3)

Here the verb ties a chain from experience to outcome: “suffering produces perseverance.” The word highlights that perseverance is not merely wished for but worked out through the pressure of “sufferings,” which the speaker can therefore face with informed “rejoic[ing].”

“But sin, finding occasion through the commandment, produced in me all kinds of coveting. For apart from the law, sin is dead.” (Romans 7:8)

The verb depicts sin as an active agent that generates an inner product: “produced in me all kinds of coveting.” The line “finding occasion through the commandment” supplies the setting in which sin’s productive power operates, and the concluding sentence (“apart from the law, sin is dead”) underscores the contrast between activated and inactive states.

“Did then that which is good become death to me? May it never be! But sin, that it might be shown to be sin, was producing death in me through that which is good; that through the commandment sin might become exceedingly sinful.” (Romans 7:13)

In this argument the verb again portrays sin as effecting a result within the person: it “was producing death in me.” The wording carefully locates the mechanism “through that which is good,” so the producing is attributed to sin’s working rather than to the goodness of the instrument; the result serves a revelatory end—“that it might be shown to be sin.”

“For I don’t know what I am doing. For I don’t practice what I desire to do; but what I hate, that I do.” (Romans 7:15)

With “what I am doing,” the verb becomes the speaker’s concrete description of actions as carried out, not merely intended. The tension between “desire” and “practice” is sharpened by the repetition of doing: the hated deed is nonetheless the deed done.

“So now it is no more I that do it, but sin which dwells in me.” (Romans 7:17)

The verb is placed within a claim of agency: “it is no more I that do it.” The doing is acknowledged as real, yet the speaker assigns the productive source to “sin which dwells in me,” treating the action as worked out from an indwelling power.

“For I know that in me, that is, in my flesh, dwells no good thing. For desire is present with me, but I don’t find it doing that which is good.” (Romans 7:18)

The verb here describes the actualization of “that which is good.” Desire exists (“present with me”), but the speaker cannot locate the doing—good is not being worked out into practice. The wording makes a distinction between internal inclination and completed action.

“But if what I don’t desire, that I do, it is no more I that do it, but sin which dwells in me.” (Romans 7:20)

As in 7:17, the verb anchors the discussion in performed acts (“that I do”), while the explanatory clause returns to indwelling sin as the operative producer. The sentence structure emphasizes mismatch: the deed is executed despite lack of desire, pointing to a deeper cause than conscious intent.

“For I will not dare to speak of any things except those which Christ worked through me, for the obedience of the Gentiles, by word and deed,” (Romans 15:18)

Here the verb is used for effective ministry: “those which Christ worked through me.” The action is credited to Christ as the one producing results, with the speaker as the means (“through me”), and the intended result is specified as “the obedience of the Gentiles,” expressed “by word and deed.”

“For I most certainly, as being absent in body but present in spirit, have already, as though I were present, judged him who has done this thing.” (1 Corinthians 5:3)

In this disciplinary context the verb points to a completed act: “him who has done this thing.” The deed is treated as an accomplished matter that can be evaluated and judged, even across physical absence, because the action has been carried out and stands as a definite product in the community’s life.

Sense and Usage

Across these passages, κατεργάζομαι consistently presents action in terms of its realized effect—something is brought about, worked through, or carried out so that a result stands in view. Sometimes the subject is a principle or power rather than a person: “the law produces wrath” (Romans 4:15), “suffering produces perseverance” (Romans 5:3), and “sin… produced in me all kinds of coveting” (Romans 7:8). In those settings the verb gives these realities an active, outcome-producing force; they do not remain abstract, but generate observable consequences—wrath, perseverance, coveting, even “death in me” (Romans 7:13).

In Romans 7 the word is repeatedly set within the speaker’s inner conflict, and its contribution is to keep the discussion grounded in concrete doing rather than vague aspiration. “I don’t know what I am doing” (Romans 7:15) and “I don’t find it doing that which is good” (Romans 7:18) treat action as something that can be searched for and identified: is good actually being worked out, or is the opposite being enacted? The repeated denial—“it is no more I that do it, but sin which dwells in me” (Romans 7:17, 7:20)—frames wrongdoing as a produced outcome whose immediate performer (the ‘I’) is not the final explanatory source. The verb thus serves the argument’s insistence that deeds have a producer, and that identifying that producer matters for understanding the experience described.

Elsewhere, the verb can mark human wrongdoing as something actively carried out with consequences that return upon the agent. In Romans 1:27 the sequence “men doing what is inappropriate… and receiving… the due penalty” ties deed and recompense closely together, portraying the penalty as an outcome connected to the doing. Romans 2:9 similarly connects “does evil” with “oppression, and anguish,” treating evil as a practiced action that yields distress as its attendant result.

The same verb can also be used positively when the producer is Christ. “Those which Christ worked through me” (Romans 15:18) aligns the speaker’s “word and deed” with a deeper working that brings about “the obedience of the Gentiles.” In that setting, the verb’s force is not merely that something happened, but that an effective outcome was produced through agency and means: Christ as the one working, the speaker as the instrument, and obedience as the result expressed in concrete realities.

Imagery

The passages cast κατεργάζομαι in images of cause leading to effect: law to wrath (Romans 4:15), suffering to perseverance (Romans 5:3), sin to coveting and death (Romans 7:8, 7:13), and Christ’s working to obedience expressed in “word and deed” (Romans 15:18). Even where the verb simply names a deed as done (1 Corinthians 5:3), it treats the act as something produced—solid enough to be judged and addressed.

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).