שמות, פרק ל״ו, פסוק כ״ו

The architecture of the Tabernacle was defined by a clear sense of uniformity and symmetry. To support the boards that formed the walls, forty silver bases were cast. The builders placed exactly two silver bases under every single board. This precise arrangement reveals that both the southern and northern walls of the Tabernacle were constructed in a completely identical and straightforward manner [ביאור שטיינזלץ].