Stones in the Bible in general represent truths, or things we know concerning the Lord and what He wants from us and for us in life. This is why the people of Israel built altars of stone, and is also why stoning was a principal form of capital punishment (using truth to destroy falsity, or in the negative sense using falsity to destroy truth). It is also why precious stones are described in such detail on Aaron's breastplate and ephod, and also in the New Jerusalem in Revelation; precious stones represent true ideas directly from the Lord with the various colors showing various forms of love. Stones are not alone in representing truth, of course -- it sometimes seems that almost everything in the Bible represents either true ideas or desires for good. But that makes sense, since our thoughts and our desires together are everything we are in life, and the interplay between them is what life is all about. The many ways they are represented in the Bible reflect the incredible variety in our feelings and thoughts, though we can only distantly understand how those representations work. In the case of stones, in their weight, strength and permanence they tend to represent true ideas that come from a desire for good, the understanding we can have if we are truly good and loving -- and in the highest sense the exalted ideas that come from the Lord's love. Those ideas are ones that are not easily moved or changed, and make wonderful foundations for the things we want to build in our spiritual lives.

8005. 'And you shall not break a bone of it' means that factual knowledge of truth must also remain intact. This is clear from the meaning of 'a bone' as what is last and lowest, serving as a foundation for more internal things to rest on and as a support to prevent them from falling apart. This last and lowest support in spiritual things is factual knowledge; for all spiritual truths and forms of good flow down in accordance with order towards lower levels, coming to rest finally in factual knowledge, in which a person can then catch sight of them. As for the meaning of 'you shall not break' - that such knowledge must remain intact - this is self-evident. Factual knowledge is said to remain intact when it lets into itself nothing but truths that are in accord with its good; for factual knowledge is the general receptacle of them. Furthermore items of knowledge are like the bones in a person's body. If they do not remain intact or properly arranged, as when they are dislocated or are bent out of shape, the form of the body is consequently altered, and that altered form conditions its movements. Factual knowledge of truth may be equated with matters of doctrine.