The construction of the Temple required a unique architectural and spiritual vision, where as much effort and splendor were invested in the hidden elements as in the visible ones. The process began by uprooting massive stones from the mountain [רש״י, רד״ק, מצודת דוד]. The primary approach among commentators is that these were not necessarily gems, but rather heavy, solid, and exceptionally strong stones capable of providing a firm base for the structure [רש״י, רלב״ג, מצודת ציון, שטיינזלץ]. However, others maintain that these were genuinely rare and beautiful materials, such as pure marble brought from a special quarry [רד״ק, מלבי״ם]. Regardless of their exact nature, these stones were carefully cut and smoothed with tools until their surfaces were perfectly flat and their angles exact [רש״י, מצודת דוד, רלב״ג, שטיינזלץ].
A fascinating discussion arises regarding where these different stones were placed. One perspective suggests that the large, heavy stones were used for the foundations, while the smaller, precisely cut stones were reserved for the visible walls [רד״ק]. However, the central approach rejects this division. Typically, builders use rough, unworked stones for a building's foundation, as they are buried in the earth and remain unseen, saving the beautiful, polished stones for the exterior. King Solomon chose to act against normal human habit. Driven by a generous and expansive spirit, he demanded that even the hidden foundations be constructed from enormous, valuable, and perfectly smoothed stones. Because he was building a house for God, Who sees into the heart rather than just looking at the surface, the perfection and majesty of the building had to extend to its most concealed depths [אברבנאל, מלבי״ם, מצודת דוד].
This immense investment in the unseen foundations was also rooted in the profound holiness of the location. King Solomon sanctified the Temple grounds all the way down to the deepest abyss. Because the depths of the earth at this site were also holy, honoring that sanctity required laying precious and significant stones even in the foundations that no human eye would ever see [נחל שורק, חומת אנך, אהבת יהונתן]. On a practical level, preparing these stones required extraordinary care. Out of respect for the holiness of the Temple, the sound of iron tools was completely forbidden on the site. Consequently, all the cutting and shaping of these stones took place outside at the quarry. Only after they were entirely finished and perfected were they brought into the construction area [רש״י, שטיינזלץ].