The architecture of the Temple carefully reflects a hierarchy of holiness. As one moves through the sacred space, the materials and shapes of the doorways subtly shift to indicate the level of sanctity within. The entrance to the main sanctuary shares certain elegant details with the inner Holy of Holies, yet it remains distinctly separate in its design to highlight this spiritual grading.
Just like the inner chamber, the doorposts of the main sanctuary were crafted from olive wood, and its doors were adorned with intricate carvings and completely overlaid with gold [אברבנאל]. However, a subtle step down in the hierarchy of materials is evident. While the posts were made of olive wood, the doors themselves were constructed from cypress, a wood considered to be of a slightly lesser grade than the materials used in the holiest space [רד״ק, מלבי״ם].
The specific design of this entrance is understood in two distinct ways. One approach focuses on the geometric shape of the doorway, suggesting that the sanctuary doorposts were built as squares with four distinct sides. This directly contrasts with the doorposts of the Holy of Holies, which were designed with five sides [רש״י, מצודת דוד, רד״ק]. There are alternative ways to picture this four-sided structure. The doorposts might have featured four stepped edges, each recessed deeper than the last, creating a layered visual effect. Alternatively, the design could refer to the construction method itself, indicating that the posts were not carved from a single solid block of wood, but were instead assembled by joining separate wooden boards together [רד״ק].
A different perspective views the design not in terms of physical shape, but as a marker of location. According to this line of thought, this specific doorway served as the fourth entrance in the overall sequence of the Temple's gates [מלבי״ם, רלב״ג, אברבנאל, ביאור שטיינזלץ]. Numbering the entrances in this way is far more than a simple technical blueprint. It serves as a deliberate marker, hinting at the deep, underlying spiritual intentions that formed the foundation of the entire Temple's design [רלב״ג].