Based on what was already said, we can consider the unhewn stone the symbol of the still unknown, unrevealed God. This is the God who did not become a man, the transcendent, unrevealed Word. This reflects the primordial and unrefined concepts of the Divine. Indeed, even in the tabernacle and in the temple of Solomon, we see only a cubic space. It is the place of dwelling for God, but, apart from different relics, it is empty, unlike the Christian temple. In a Christian temple, there is always a decorated throne in the altar as the most precious treasure.
The very adorning of the temple, as we have pointed out, has the significance of a more explicit idea of God, gradually revealing Himself to man. Back in the Old Testament period, the First and Second temples were already decorated, their stones were processed. This stone-carving represents a kind of wisdom of gradual knowledge of God and approaching the vision of God, possible in Christ. It is not for nothing that Solomon says: "Wisdom has built her house, she has set up its seven pillars" (Proverbs 9:1). He also says: "By wisdom a house is built, and through understanding it is established" (Proverbs 24:3). So, starting from Solomon, temple building is enriched with interrelated concepts of wisdom and worked stone. This clearly influenced the Christian theology of the temple [12, p. 103]. And the Mother of God became an obvious House of Wisdom. Receiving God in Herself, She became the living First Temple of Christianity. Thus, all Christian churches become true houses of Wisdom.
Let's note that in general for ancient people precious stones were the embodiment of light. They believed that the stone contained a particle of light. It is not for nothing that the stone became a symbol of Christ, the incarnate Divine Word and Light. The same is true for pearls. People believed that when lightning penetrates the depths of the sea, one pearl is born in one shell - another embodiment of light. That is why the most sacred places were richly decorated with precious stones. In ciboria over rulers who were considered to have divine functions, or over sacred places, open shells were often carved from stone. This was to show that there was a pearl under them. The same symbolism passed into Christianity.
Let's note that in general for ancient people precious stones were the embodiment of light. They believed that the stone contained a particle of light. It is not for nothing that the stone became a symbol of Christ, the incarnate Divine Word and Light. The same is true for pearls. People believed that when lightning penetrates the depths of the sea, one pearl is born in one shell - another embodiment of light. That is why the most sacred places were richly decorated with precious stones. In ciboria over rulers who were considered to have divine functions, or over sacred places, open shells were often carved from stone. This was to show that there was a pearl under them. The same symbolism passed into Christianity.
The cubic shape of a cut precious stone also has a hidden meaning of the person's spiritual development in Christ. In the feat of the Christian life the intuitive and primordial faith is refined. It is tested and improved, like the perfect Word, it takes the form of a precious equilateral and integral stone.
The perfection of the cubic form is evidenced not only by Revelation (see Ezekiel 40:43, Revelation 21), but by the very numerical value of the four. There are similar origins of the symbolism of the four in many traditional cultures. This is the fullness of directions from one point. This is the potency of the circle, that is, the fullness in the square. This is the image of static integrity, an ideally stable structure. This is the unity of the year, based on four points - two equinoxes and two solstices. These are the four rivers of Paradise, and the four sides of the Cross. In general, the square is a very common basis for ritual architectural structures of various cultures. Thus, in India and China, for example, a square denotes the earth and a sacramental building is built on its basis. We see the same thing in the Abrahamic religions. "For the four is the ten in possibility, inasmuch as it progressively develops from the one. But the four is also the one. When gathered together, it embraces the good. It reveals the simplicity and indivisibility of the Divine energy, indivisibly divided in it" [7, p. 164], writes St. Maximus the Confessor.
It is appropriate to mention here the famous society of Freemasons. According to the legends, it appeared during the construction of Solomon's Temple. The Freemasons consider themselves the keepers of certain knowledge on stone processing. Their philosophy and rituals use architectural images. This processing of stones, that is, giving the structure a look for the presence of God, is their "secret knowledge". They consider themselves mystical architects, rebuilding Solomon's Temple. They give their architectural structures a refined appearance and endow it with certain symbols. The Freemasons believe that this way they prepare a contemplative temple, which should reappear on Mount Moriah in the end. Each new member of the lodge is considered an "unworked stone", ignorant of wisdom. Ascending to a higher grade, a member is more and more "processed" and thus worthy of more serious deeds in building a symbolic temple. The religious affiliation of the adept is unimportant, the main thing is to recognize the One God. The whole world is likened to a huge building. The work on its arrangement in the image of the Temple of Solomon, that is, the temple of God, is considered the main one [3, p. 181]. So, often in Masonic temples, an image of the plan of Solomon's temple is made on the floor. Two stones are located by the altar - unhewn and hewn. The first is an image of "philosophical salt" as a sign of movement towards perfection. The second is associated with ideas about the primordial immature nature [12, p. 107]. A person is called to adorn this nature with wisdom and build up to the image of a perfect temple.
The first prophecy about a precious stone, showing the true faith in God, is by the prophet Isaiah. "So this is what the Sovereign Lord says: See, I lay a stone in Zion, a tested stone, a precious cornerstone for a sure foundation; the one who relies on it will never be stricken with panic." (Isaiah 28:16). Russian Biblical scholar Alexander Lopukhin gives the following interpretation of this passage: "What did the prophet mean by the cornerstone? It must be a stone supporting all that is true and right. Therefore, this is not Zion, as some interpreters believe, not the house of David, not Hezekiah, not the temple, not the law. It would be quite correct to see in this stone the Messiah, the Son of God, the only mediator between God and people, who was to be born from the lineage of David (cf. Isaiah 8:8). The New Testament confirms this idea. It calls Christ the cornerstone on which the community of the saved, or the Church, is built (Eph 2:20, Acts 4:11 and 1 Pet 2:6-7). The stone is called tested, i.e. completely reliable. Since we are talking about the Messiah, here we can see a sign of the trials that Christ the Savior was subjected to during His earthly life. A cornerstone does not only support a building, it also links its walls at two converging corners. The specially strong stones are used for this, square in shape" [10, p. 169]. Thus, the processed stone, decorated and consecrated by the Church, symbolizes the incarnate Word. It is the Wisdom of God, revealed to people. This is why the Christian temple is always decorated. In particular, the cubic-shaped altar is decorated as the main relic of the temple. In the Christian temple, the Word and the stone are connected. The higher being, designated as a sphere (in the likeness of the sky) is connected to the earthly existence, the matter. The Word sounds in the stone, the theological concept "sounds" in the image of the temple. Their "unconfused and indivisible" combination creates a symbol with multifaceted meanings. But the highest archetype of the temple is the Heavenly City of the Church. It is the transfigured cosmos where Christ reigns, uniting in Himself all and everything in this City.
The foundation of the Christian temple is the "precious stone" Christ. But since this stone is expressed in an image, then, covered with matter, it conceals a rich symbolism, befitting Christ Himself. Having united the divine and the human in Himself, Christ reconciled Heaven and earth. According to Saint John Geometres (10th century), the Christian temple "removes the contradiction between the spiritual and the material, Heaven and earth". This is why the symbolism of the temple is strengthened [2, p. 163]. The Lord is the highest Beauty. Thus, if there is a connection between the symbol of the precious Stone-Christ and the temple, it means that the temple itself must be decorated. According to Saint Symeon of Thessalonica, "the beauty of the temple means that He who came to us is beautiful with kindness. He is a wondrous bridegroom, and the Church is His beautiful bride" [9, p. 217].