ΠΕΤΡΑ
The petra (πέτρα), a fundamental element of the natural world, symbolizes stability, strength, and endurance. From ancient Greek mythology and philosophy to Christian tradition, the stone (rock) serves as a multifaceted archetype. Its lexarithmos (486) suggests a connection to concepts related to foundation, protection, and eternal existence.
Definition
According to the Liddell-Scott-Jones Lexicon, πέτρα (petra, ἡ) is primarily defined as "a rock, stone." The word describes a natural formation, a piece of hard mineral material, widely found in the environment. Its meaning extends from the simple stone used in daily life to the large rocks that shape the landscape.
In ancient Greek thought, the stone was not merely an object but often carried symbolic connotations. It was the material for altars, monuments, fortifications, and tools. Its hardness and durability made it ideal for constructing foundations, bridges, and buildings, signifying stability and timelessness. Philosophers like Plato and Aristotle often used the properties of stone to illustrate concepts of matter, form, and permanence.
In Christian literature, πέτρα acquires particular theological significance. Christ is referred to as "the chief cornerstone" (Ephesians 2:20), while the Apostle Peter receives his name from this word, symbolizing the foundational rock of the Church (Matthew 16:18). Its metaphorical use underscores unwavering faith and spiritual strength, establishing a profound link between the physical object and spiritual truths.
Etymology
Cognate words include the verb πετρόω (to turn to stone, harden), the adjective πετρώδης (stony, rocky), and the diminutive noun πετράδιον (small stone, jewel). In Latin, the word petra was borrowed from Greek, leading to words like petroleum.
Main Meanings
- Natural rock, stone — The literal meaning, a piece of hard mineral material.
- Foundation, base — Metaphorically, something stable and immovable upon which something else is built.
- Fortification, stronghold — A rocky place offering natural defense or a defensive structure.
- Symbol of hardness, endurance — Referring to rigidity, resistance to time, and difficulties.
- Obstacle, reef — Something that blocks the way or causes difficulty.
- Stone as material (e.g., for a mill, altar) — Use of stone in artifacts or religious constructions.
- Metaphorical use for a person — A person with a stable character, unwavering faith, or a hard heart.
Philosophical Journey
As both a material and a symbol, πέτρα traverses the history of Greek civilization from prehistoric times to the Christian era, continually acquiring new dimensions.
In Ancient Texts
The significance of πέτρα in ancient literature and Christian tradition is highlighted through characteristic passages.
Lexarithmic Analysis
The lexarithmos of the word ΠΕΤΡΑ is 486, from the sum of its letter values:
486 decomposes into 400 (hundreds) + 80 (tens) + 6 (units).
The 18 Methods
Applying the 18 traditional lexarithmic methods to the word ΠΕΤΡΑ:
| Method | Result | Meaning |
|---|---|---|
| Isopsephy | 486 | Base lexarithmos |
| Decade Numerology | 9 | 4+8+6=18 → 1+8=9 — Ennead, the number of completion and perfection. |
| Letter Count | 5 | 5 letters — Pentad, the number of life and humanity. |
| Cumulative | 6/80/400 | Units 6 · Tens 80 · Hundreds 400 |
| Odd/Even | Even | Feminine force |
| Left/Right Hand | Right | Divine (≥100) |
| Quotient | — | Comparative method |
| Notarikon | P-E-T-R-A | Permanent, Enduring, True, Resilient, Ancient (interpretive) |
| Grammatical Groups | 2V · 0S · 3C | 2 vowels, 0 semivowels, 3 consonants. The predominance of consonants suggests the hardness and rigidity of stone. |
| Palindromes | No | |
| Onomancy | — | Comparative |
| Sphere of Democritus | — | Divination with lunar day |
| Zodiacal Isopsephy | Sun ☉ / Libra ♎ | 486 mod 7 = 3 · 486 mod 12 = 6 |
Isopsephic Words (486)
Words from the Liddell-Scott-Jones lexicon sharing the same lexarithmos (486) as πέτρα, revealing interesting conceptual connections.
The LSJ lexicon contains a total of 60 words with lexarithmos 486. For the full catalog and AI semantic filtering, see the interactive tool.
Sources & Bibliography
- Liddell, H. G., Scott, R., Jones, H. S. — A Greek-English Lexicon. Oxford: Clarendon Press, 1940.
- Strong, J. — Strong's Exhaustive Concordance of the Bible. Nashville: Thomas Nelson, 1990.
- Bauer, W., Arndt, W. F., Gingrich, F. W., Danker, F. W. — A Greek-English Lexicon of the New Testament and Other Early Christian Literature (BDAG). 3rd ed. Chicago: University of Chicago Press, 2000.
- Chantraine, P. — Dictionnaire étymologique de la langue grecque: histoire des mots. Paris: Klincksieck, 1968-1980.
- Plato — Phaedo. Loeb Classical Library. Cambridge, MA: Harvard University Press, 1914.
- Aristotle — Physics. Loeb Classical Library. Cambridge, MA: Harvard University Press, 1929.
- The Holy Bible — New International Version (NIV) and Septuagint (LXX).