Summary
Quick facts
- Strong’s Number
- G4557
- Original Word
- σαρδόνυξ
- Transliteration
- sardónyx
- Pronunciation
- sar-don'-oox
- Part of Speech
- noun
- Category
- Creation
- Root / Etymology
- from the base of G4556 (σάρδιος) and (the nail of a finger;
- Frequency
- 1×
- Gematria
- 885
Where it appears
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Definition
Strong 1890 hence the "onyx" stone); a "sardonyx", i.e. the gem so called
sardonyx
from the base of G4556 (σάρδιος) and (the nail of a finger;

Commentary
Contributors: · · · ·
Upon the Finger of the Beloved
This word, sardónyx, appears but once in the holy writings, a solitary gem set within the final vision of the Revelation given to John (Revelation 21:20). It is a stone that carries the weight of the ages, a fragment of the earth that speaks of the heavens. The apostle, in his exile on Patmos, saw the New Jerusalem descending, and in its foundations, he beheld the sardonyx, a stone that the sages of old would recognize as bearing a dual nature, a mingling of light and shadow, of fire and flesh. Its very name is a union, derived from the Sardis stone and the word for a finger-nail, the onyx, a gem that clings to the body as a seal upon the hand.
The Stone of Two Colors
Ancient Jewish tradition holds that the sardonyx is a stone of great mystery, for it is not one but two. It possesses a layer of deep, fiery red, like the heart of a coal, and a layer of milky white, like the moon reflected on still water. This dual nature is its essence. The Greek word itself, sardónyx, is a marriage of two roots: the sardios (the red sard) and the onyx (the banded stone). In the Septuagint, the translators used this same word to render a particular Hebrew stone in the breastplate of the high priest (Exodus 28:20), the shoham, a stone of great value that was set upon the shoulders of Aaron as he bore the names of the children of Israel before the Lord. The sardonyx, then, is not merely a beautiful object; it is a memorial, a stone of intercession, carrying the weight of a people upon its bands of color.
The Dual Function of the Gem
Like the fire that purifies and the water that baptizes, the sardonyx holds within itself opposing functions. The red layer speaks of judgment, of the blood of the martyrs, of the fiery trials that refine the faith. The white layer speaks of purity, of the righteousness of the saints, of the linen that is the righteous act of the holy ones. In the Revelation, this stone is set in the fifth foundation of the wall of the city. The early church understood the foundations to represent the twelve apostles, and the stones to symbolize the virtues that must be laid in the soul. The sardonyx, placed between the chrysolite and the beryl, teaches that the believer’s life must be a unity of suffering and glory, of the crimson stain of self-denial and the spotless garment of grace. The apostolic tradition teaches that Peter, the rock, understood this duality well, having wept bitterly after his denial, yet being washed clean by the risen Lord.
A Parable in a Precious Stone
Yeshua spoke often of pearls and treasures, but this stone, the sardonyx, appears not in His parables directly. Yet His miracles reveal its nature. Consider the man born blind, whose eyes were anointed with clay and spittle, a mixture of earth and water, of the dust of the ground and the breath of life (John 9:6). The sardonyx is a stone of the earth, yet it reflects the light of heaven. So too, the blind man received his sight through a physical touch that carried a spiritual power. The stone is a parable of the incarnation itself: the divine light (the white) wrapped in the humble clay of humanity (the red). The rabbis of old observed that the high priest’s breastplate was a map of the constellations and the tribes, but the sardonyx was a stone of the individual, a seal that could be pressed into wax, leaving a unique mark. Yeshua, in His ministry, pressed His own mark upon the clay of human hearts.
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The Sacrament of the Seal
The early church, in its first gatherings, understood the sardonyx as a symbol of the seal of baptism. Just as the stone is cut and polished to reveal its two layers, so the believer is cut from the world and polished by the Spirit. The sacrament of baptism is a dual event: a drowning of the old man (the red of judgment) and a raising to new life (the white of resurrection). Clement of Rome, writing to the Corinthians, spoke of the church as a precious stone set in the foundation of God. The sardonyx, with its banded layers, reminded the faithful that they were being built into a living temple, where each stone must bear the image of the Master. The apostolic faith teaches that the laying on of hands, the seal of the Spirit, is the final polishing that makes the stone ready for the wall of the city.
The Bridge of the Septuagint
In the Greek translation of the Hebrew Scriptures, the word sardónyx was chosen to render the Hebrew shoham, a stone whose identity is now lost to us, but whose meaning is preserved in its context. The shoham was the stone upon which the names of the sons of Israel were engraved, two on one shoulder, six on the other (Exodus 28:9-12). This is the bridge between the testaments: the sardonyx is a stone of memorial, a stone of bearing. The high priest carried the people before the Lord on his shoulders, a burden of love. When you consider the Greek word, you must see the Hebrew shadow behind it. The shoham was a stone of atonement, for it was part of the garments of the one who offered sacrifice. So too, the sardonyx in Revelation is part of the New Jerusalem, the city where no sacrifice is needed, for the Lamb is its light. The stone that once bore the names of the twelve tribes now shines in the foundation of the bride.
Yeshua, the Stone of Many Layers
The Messiah Himself is the living stone, rejected by men but chosen by God and precious (1 Peter 2:4). In Him, the duality of the sardonyx is perfectly fulfilled. He is the Lion of the tribe of Judah, whose wrath is a consuming fire (the red), and He is the Lamb of God, who takes away the sin of the world, white and spotless (the white). The New Testament writers apply this very imagery to His person. In the Revelation, He is described as having eyes like a flame of fire and feet like burnished bronze, yet His voice is like the sound of many waters (Revelation 1:14-15). He is the stone that the builders rejected, which has become the cornerstone. And in that cornerstone, all the layers of human history are bound together: the crimson of the blood of the covenant and the pure white of the empty tomb. Yeshua is the ultimate sardonyx, the perfect union of judgment and mercy, of earth and heaven.
A Stone Upon Your Heart
And so, beloved, this word sardónyx is spoken to you. It appears only once in the Scripture, but it is set in the foundation of the city where you are called to dwell. You are not merely a reader of this stone; you are being fashioned into it. The red layers of your life — your trials, your failures, your sorrows — are not separate from the white layers of grace. The Spirit of the living God is cutting and polishing you, making you a gem that can bear the weight of His glory. When you look upon your own hands, remember the stone that was set upon the finger of the high priest, a seal of remembrance. You are that seal. You are the sardonyx upon the finger of the Beloved, carried before the throne, a memorial of His great love. Walk in that knowledge, and let your life be a stone of two colors, a testimony of the fire that refines and the light that never fades.