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G5191

ὑακίνθινος

hyakínthinos /hoo-ak-in'-thee-nos/ Ask about this word
from ὑάκινθος
"hyacinthine" or "jacinthine", i.e. deep blue
jacinth.

Word Study

In depth

A plain-language study of hyakínthinos — 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 hyakínthinos, represented by G5191, is a specific adjective meaning "hyacinthine" or "jacinthine," which denotes a deep blue color. This term is exceptionally rare in scripture, appearing only 1 time in 1 unique verse. Its sole use is to describe a specific visual element within a prophetic vision, linking its meaning directly to the color of the jacinth stone.

Biblical Occurrences & Contextual Analysis

The single biblical occurrence of G5191 is found in the apocalyptic vision of Revelation 9:17. In this passage, John describes a terrifying supernatural cavalry, stating that the riders had "breastplates of fire, and of jacinth, and brimstone." The word provides a specific color, deep blue, to the armor of these formidable figures. This use of G5191 contributes to a vivid and unnerving image where the colors of the riders' breastplates mirror the destructive elements of fire, smoke, and brimstone that issue from the mouths of their horses.

Related Words & Concepts

Several related words in the immediate context of Revelation 9:17 help clarify the role and meaning of hyakínthinos:

  • G2382 thṓrax (breast-plate): This is the object that G5191 describes. The riders are equipped with a breast-plate, a piece of armor for the chest, signifying their martial and destructive purpose Revelation 9:17.
  • G4447 pýrinos (of fire): This adjective is used in parallel with G5191 to describe the breastplates, linking the deep blue of jacinth with the color of fire Revelation 9:17.
  • G2306 theiṓdēs (brimstone): The third descriptor for the breastplates, this "sulphur-like" color connects the riders' appearance directly to themes of judgment Revelation 9:17.
  • G4442 pŷr (fire): This element, which comes from the mouths of the horses, is also used to describe the breastplates, creating a direct visual link between the riders' armor and their destructive power Revelation 9:17.

Theological Significance

While appearing only once, the theological context of G5191 is significant due to its associations.

  • Imagery of Judgment: The word jacinth is part of a trio of descriptors—fire, jacinth, and brimstone—that are strongly associated with divine judgment and destruction throughout the book of Revelation.
  • Apocalyptic Vision: As a descriptor, G5191 contributes to the unique and terrifying nature of the vision in Revelation 9:17, painting a picture of a supernatural army that is unlike any earthly force.
  • Symbolic Armor: The term is used to describe a breast-plate G2382, connecting the deep blue color to the defensive and offensive nature of the riders in this prophetic judgment.

Summary

In summary, G5191 is a highly specific term for the color "deep blue," or jacinth. Its importance is derived entirely from its single, powerful use in Revelation 9:17. Paired with descriptions of fire and brimstone, it does more than add color; it contributes to the fearsome and judgmental imagery of the apocalyptic vision, tying this rare word to a scene of divine wrath.

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

  • Accusative Plural Masculine
Accusative
The direct object of the verb.
Plural
More than one.
Masculine
Masculine grammatical gender.

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 Revelation — 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.