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G4604

σίδηρος

sídēros /sid'-ay-ros/ Ask about this word
of uncertain derivation
iron
iron.

Word Study

In depth

A plain-language study of sídēros — 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 sídēros, represented by G4604, is the term for iron. It is a specific and uncommon term in the biblical text, appearing just 1 time in 1 unique verse. Its sole usage places it within a list of materials, identifying it as a commodity of trade.

Biblical Occurrences & Contextual Analysis

The single biblical occurrence of G4604 is in the description of Babylon's fall. In Revelation 18:12, iron is listed as part of the "merchandise" of the great city. It appears alongside other valuable metals and materials such as gold, silver, brass, and precious stones. This context establishes iron as a significant component of worldly commerce and material wealth during that time.

Related Words & Concepts

Several related words appear alongside G4604 in its only context, illustrating the types of valuable goods associated with it:

  • G5557 chrysós (gold): This metal is listed first in the inventory of Babylon's merchandise, signifying great value Revelation 18:12. It is often contrasted with things of greater, spiritual worth 1 Peter 1:7.
  • G696 árgyros (silver): Paired with gold, silver represents another form of worldly wealth and a key trade commodity that is subject to corruption (James 5:3, Revelation 18:12).
  • G5475 chalkós (brass): Defined as copper or brass, this metal is also part of the merchandise of Babylon, listed just before iron Revelation 18:12. It can also simply mean money Mark 12:41.
  • G5093 tímios (precious): This term, meaning valuable or honored, is used to describe the stones and wood in the same list, emphasizing the high cost and desirability of the cargo being traded Revelation 18:12.

Theological Significance

The theological weight of G4604 is derived entirely from its singular context within the judgment of Babylon.

  • Symbol of Earthly Commerce: The inclusion of iron in the list of Babylon's goods solidifies its role as a symbol of the vast, material-focused economy of the world system Revelation 18:12.
  • Association with Worldly Value: Positioned with gold, silver, and precious stones, iron is characterized as a material that worldly systems value. This entire category of wealth is shown to be fleeting in the face of divine judgment.
  • Contrast to Spiritual Riches: The catalogue of earthly treasures, including iron, stands in stark contrast to the "precious" things of God, such as faith 1 Peter 1:7, the blood of Christ 1 Peter 1:19, and divine promises 2 Peter 1:4.

Summary

In summary, G4604 sídēros is a straightforward term for iron. Its biblical significance is entirely shaped by its single appearance in Revelation 18:12. It functions as an example of the material goods that constitute the wealth of the worldly system of Babylon. While not as prized as gold or silver, its inclusion demonstrates the comprehensive nature of the world's commerce, all of which is ultimately subject to divine judgment.

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

  • Genitive Singular Masculine
Genitive
Possession or source — often "of".
Singular
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.