Word Study for G615 (ἀποκτείνω)

apokteínō /ap-ok-ti'-no/ Ask about this word

Rootfrom ἀπό and κτείνω (to slay)

Meaningto kill outright; figuratively, to destroy

KJV usageput to death, kill, slay.

Word Study

In depth

A plain-language study of apokteínō — the range of meaning it carries, how Scripture actually uses it, and where it points. Written for readers who don’t know the original language.

Core Meaning & Semantic Range

The Greek word apokteínō, represented by G615, means to kill outright or, figuratively, to destroy. It appears 83 times across 71 unique verses in the Bible, most often translated as "kill," "slay," or "put to death." The term denotes a decisive and final act of taking a life, whether physical or spiritual.

The prefix apó (G575) in apokteínō often carries a sense of separation or completion, intensifying the verb kteínō (to kill). This suggests a decisive, thorough, and final act of taking life, distinguishing it from merely wounding or disabling. It emphasizes the definitive cessation of life, leaving no room for recovery. This active verb highlights the agent performing the killing, contrasting with apothnḗskō (G599), which typically describes the state of "dying" or "being dead" and focuses on the subject undergoing death rather than the perpetrator. Thus, apokteínō consistently underscores the intentionality and direct action of one entity causing the death of another.

Biblical Occurrences & Contextual Analysis

In the biblical narrative, G615 is central to the story of Christ and his followers. Jesus repeatedly foretells his own fate, stating that he must go to Jerusalem, suffer, be killed G615, and be raised again on the third day Matthew 16:21. The term is also used to describe the persecution of God's messengers, with Jerusalem being condemned as the city that killest G615 the prophets Matthew 23:37. This theme extends to believers, who are warned they will be delivered up to be afflicted and killed G615 for His name's sake Matthew 24:9. The word also carries a figurative meaning, as when Paul writes that "the letter killeth G615, but the spirit giveth life" 2 Corinthians 3:6 or that Christ has slain G615 the enmity through the cross Ephesians 2:16.

Beyond the accomplished act of killing, G615 frequently describes the determined intent or conspiracy to take a life, even when the act is not yet completed or is thwarted. The Gospels, particularly John, repeatedly depict the religious authorities and other adversaries as actively "seeking to kill" Jesus, illustrating their deep-seated hostility and murderous resolve John 5:16, John 5:18, John 7:1, John 7:19, John 7:25. This intent is further evidenced in the plots against Paul, where certain Jews bound themselves under a curse not to eat or drink until they had "killed" him Acts 23:12, Acts 23:14, or when the soldiers considered "killing" the prisoners during the shipwreck to prevent escape Acts 27:42. These instances demonstrate that the term encompasses not just the physical act, but also the premeditated and malevolent will to bring about another's demise. In Revelation, the scope of G615 expands to cosmic dimensions, describing God's judgment through various means, such as fire, smoke, and brimstone "killing" a third part of men Revelation 9:18, and the beast having power to cause those who do not worship its image to be "killed" Revelation 13:15, underscoring its role in divine and anti-divine eschatological conflict.

Related Words & Concepts

Several related words provide a fuller context for the actions and hostility associated with G615:

G1194 dérō (to scourge, beat): This term for beating or thrashing often precedes the act of killing. In the parable of the wicked husbandmen, they beat one servant, killed another, and stoned a third Matthew 21:35.
G1377 diṓkō (to pursue, persecute): This word signifies the hostile pursuit that leads to violence. The fathers are described as having persecuted G1377 the prophets before they slew G615 them Acts 7:52.
G4717 stauróō (to crucify): This specifies the method of execution. Jesus warns his disciples that some of the prophets and wise men He sends will be killed G615 and crucified G4717 Matthew 23:34.
G5406 phoneús (murderer): This noun identifies one who commits the act of killing. Stephen accuses the council of being the betrayers and murderers G5406 of the Just One, whom they had slain G615 Acts 7:52.
G599 apothnḗskō (to die): While apokteínō denotes the active agency of killing, apothnḗskō signifies the state of dying or having died. The former emphasizes the perpetrator's action, while the latter focuses on the subject's experience of death, providing a crucial distinction between causing death and undergoing it.

Theological Significance

The theological weight of G615 is significant, touching on themes of sacrifice, discipleship, and judgment.

The Cost of Discipleship: The word establishes martyrdom as a potential reality for followers of Christ. Jesus warns that those who kill G615 his disciples will think they are offering service to God John 16:2.
Redemptive Sacrifice: The predicted death of Jesus is foundational. He is called the "Prince of life," whom men killed G615, but whom God raised from the dead Acts 3:15. His death is not an accident but a prophesied event.
Spiritual Destruction: The term is used metaphorically to describe the destructive power of sin and the law apart from the Spirit. Paul states that sin, using the commandment, deceived him and slew G615 him Romans 7:11.
Divine Judgment: In apocalyptic visions, G615 is an instrument of divine judgment. Power is given to the four horsemen to kill G615 with sword, hunger, death, and beasts Revelation 6:8, and the beast that ascends from the pit will kill G615 God's two witnesses Revelation 11:7.
Human Malice and Responsibility: The consistent use of G615 highlights the profound human wickedness and culpability in rejecting God's messengers and ultimately His Son. The Thessalonians are condemned for having "killed the Lord Jesus, and their own prophets" 1 Thessalonians 2:15, emphasizing a pattern of violent opposition to divine truth that carries significant moral weight.
The Power of Divine Retribution: While G615 often describes human evil, it is also wielded by God as an instrument of righteous judgment. Jesus warns to "fear him which after he hath killed hath power to cast into hell" Luke 12:5, pointing to God's ultimate authority over both physical and eternal death. In Revelation, God permits and orchestrates events where death is meted out as a consequence of rebellion, as seen in the plagues where men are "killed" Revelation 9:18, demonstrating divine justice.

Summary

In sum, G615 apokteínō fundamentally conveys the decisive act of taking a life, whether physically or figuratively, marked by a sense of finality and often, malicious intent. It is an active verb, emphasizing the agent's direct responsibility in causing death, a nuance distinct from merely "dying" (G599). This word is central to the New Testament narrative, not only in the literal prediction and fulfillment of Jesus' sacrificial death and the martyrdom of His followers, but also in describing the pervasive, murderous plots against Him and His disciples by those entrenched in opposition to God's will.

The theological landscape of G615 is rich, encompassing the profound human malice and responsibility evident in the killing of prophets and Christ, yet simultaneously underscoring God's ultimate sovereignty over life and death, even employing G615 as an instrument of divine judgment in eschatological contexts. Whether depicting the destructive power of sin, the slaying of enmity through the cross, or the apocalyptic judgments of Revelation, G615 consistently points to a definitive end, underscoring the gravity of life and death in both the physical and spiritual realms. This comprehensive understanding reveals G615 as a potent term for the ultimate, intentional cessation of life, profoundly shaping the biblical narrative of sacrifice, persecution, and divine justice.

How the KJV Renders It

Translation

Strong’s lists the renderings but not their weight. These are counted from the King James text of the tagged verses — the bar under each is how often the translators actually reached for it. Select one to filter the occurrences below.

Grammatical Forms

Morphology

In the Greek New Testament, this word appears as a verb across 76 occurrences, inflected in 22 grammatical forms — each row is one form, and the bar is how often it is that form. Select any form to read what each part of its name means, and to filter the occurrence list to it.

ἀποκτεῖναι
ἀπέκτειναν
ἀποκτείνωσιν
ἀποκτανθῆναι
ἀποκτενοῦσιν
ἀπεκτάνθησαν
ἀποκτείνωμεν
ἀπέκτεινεν·
ἀποκτείνας
ἀποκτενεῖ
ἀποκτεννόντων
ἀποκτείνουσα
ἀπεκτείνατε
ἀποκτεινάντων
ἀπεκτάνθη
ἀποκτανθεὶς
ἀποκτανθῶσιν
ἀποκτενῶ
ἀποκτενεῖτε
ἀποκτέννει
ἀποκτέννοντες
ἀποκτέννεσθαι

Related Words

Other entries the study above points to — each one is drawn from a reference it makes. Follow the trail to see how the words connect.

Theographic Context

Context

The people, places, and span of history the verses containing this word touch on — drawn from the theographic tagging of Scripture. Select any name to isolate its verses in the occurrence list.

Biblical Distribution

Distribution

Appears in 71 verses across 10 of the 27 books. Most frequent in Revelation (14 verses); never once in the other 17.

Matthew

Mark

Luke

John

Acts

Romans

2 Corinthians

Ephesians

1 Thessalonians

Revelation

Every Occurrence

Concordance

Every verse where the word is tagged in the King James text. Filter by book, by the English word the translators chose, by grammatical form, or search within the verses.

Sources. Definition and numbering: James Strong, Exhaustive Concordance of the Bible (1890). Morphology: STEPBible / Tyndale House (CC BY). Verse tagging: the King James text keyed to Strong’s numbers. Every count on this page is computed from the tagged corpus, not estimated.