### Core Meaning & Semantic Range
The Greek word **sárdios**, represented by `{{G4556}}`, is a noun referring to the **gem so called:--sardius**. It appears **1 times** across **1 unique verses** in the Bible. Its entire scriptural identity is tied to its single mention as a precious stone in the foundations of the New Jerusalem.
### Biblical Occurrences & Contextual Analysis
The sole biblical occurrence of `{{G4556}}` is in the description of the foundations of the wall of the New Jerusalem. It is listed as the **sixth** of twelve precious stones that adorn the city's foundation. The verse specifies its place in this divine structure: "the sixth, **sardius**" [[Revelation 21:20]].
### Related Words & Concepts
Several related words appear alongside **sárdios** in its only context, defining its position and surrounding elements:
* `{{G1623}}` **héktos** (sixth): This ordinal number directly modifies **sardius** in its only appearance. It is also used to mark other significant events, such as the opening of the "sixth seal" [[Revelation 6:12]] and the actions of the "sixth angel" [[Revelation 16:12]].
* `{{G4557}}` **sardónyx** (a "sardonyx", i.e. the gem so called): This gem is mentioned as the fifth foundation stone, immediately preceding **sardius** in the sequence [[Revelation 21:20]].
* `{{G5555}}` **chrysólithos** (gold-stone, i.e. a yellow gem ("chrysolite")): This is identified as the seventh foundation stone, immediately following **sardius** in the list [[Revelation 21:20]].
### Theological Significance
The theological weight of `{{G4556}}` is derived entirely from its specific placement in scripture.
* **Foundation of the Holy City:** The primary significance of **sardius** is its role as a component of the foundation of the New Jerusalem's wall, a structure described in John's apocalyptic vision [[Revelation 21:20]].
* **Divinely Ordered Sequence:** It is explicitly placed as the **sixth** `{{G1623}}` stone, part of a specific and symbolic list of twelve gems that constitute the foundation.
* **Context of Revelation's Judgments:** The ordinal "sixth" `{{G1623}}`, associated with **sardius**, is used elsewhere in Revelation to denote pivotal moments, including the opening of the **sixth** seal which brought a great earthquake [[Revelation 6:12]] and the pouring out of the vial by the **sixth** angel [[Revelation 16:12]].
### Summary
In summary, `{{G4556}}` **sárdios** is a term with a highly specific and singular meaning in scripture. It is not a broadly used word but is instead exclusively identified as the **sardius** gem. Its importance is derived entirely from its placement as the sixth foundation stone in the vision of the New Jerusalem, linking it to divine order and the foundational structure of God's holy city.
TRV