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G2510

καθάπτω

katháptō /kath-ap'-to/ Ask about this word
from κατά and ἅπτομαι
to seize upon
fasten on.

Word Study

In depth

A plain-language study of katháptō — 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 katháptō, represented by G2510, is a specific verb meaning to seize upon or fasten on. It appears only 1 time in 1 unique verse in the Bible, making its usage rare but impactful. The term describes a sudden, aggressive attachment, deriving from the words κατά and ἅπτομαι.

Biblical Occurrences & Contextual Analysis

The sole biblical use of G2510 occurs in a dramatic narrative involving the apostle Paul G3972. After gathering a bundle G4128 of sticks G5434 and placing them on a fire G4443, a viper G2191 emerges out of G1537 the heat G2329 and fastened on his hand G5495 Acts 28:3. This single instance captures a moment of sudden peril and attack.

Related Words & Concepts

Several words within the context of Acts 28:3 illuminate the action of G2510:

  • G2191 échidna (an adder or other poisonous snake): This is the creature that performs the action of fastening on. The term is also used figuratively to condemn a "generation of vipers" Matthew 3:7.
  • G1831 exérchomai (to issue (literally or figuratively)): This word describes the viper's emergence just before the attack, as it "there came a viper out of the heat." It signifies an origin or proceeding forth, as when evil thoughts proceed from the heart Matthew 15:19.
  • G5495 cheír (the hand): This is the object of the attack. While it literally refers to Paul's hand, the word is often used figuratively for power and divine protection, as in the promise that no one can pluck believers out of God's hand John 10:28.

Theological Significance

While rare, the event described by G2510 carries significant theological weight, serving as a real-world illustration of spiritual principles.

  • Supernatural Protection: The act of the viper that fastened on Paul's hand sets the stage to demonstrate God's divine protection. It is a literal fulfillment of the promise that believers would "take up serpents" without being hurt Mark 16:18.
  • Hostility and Attack: The viper G2191 is often a symbol of evil, as when addressing the "generation of vipers" Matthew 23:33. The viper's sudden attack from the fire G4443 reflects the dangers and opposition faced by believers.
  • Divine Testimony: The attack described by G2510 becomes a powerful testimony. The viper fastened on Paul's hand G5495, an instrument often associated with ministry, such as when Ananias laid his hands on Paul to restore his sight Acts 9:17.

Summary

In summary, G2510 is a precise verb whose importance comes not from frequent use, but from its role in a single, vivid biblical account. It captures the critical moment of a hostile attack, setting the stage for a demonstration of God's power and faithfulness. The word illustrates how a singular action can serve as a powerful testament to the spiritual protection promised to God's servants.

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 1 occurrence, inflected in 1 grammatical form — each row is one form, and the bar is how often it is that form.

  • Aorist Active Indicative 3rd Singular
Singular
One.
3rd
Third person — the one spoken about ("he"/"they").
Aorist
Action viewed as a single whole — usually a simple past event.
Active
The subject performs the action.
Indicative
A plain statement of fact.

Related Words

Related

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

1 verse, all in Acts — and none of the other 26 New Testament books.

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, 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.