שמות, פרק ל״ח, פסוק י״ד

The entrance to the courtyard of the Tabernacle was carefully designed with specific measurements for its boundaries. On one side of the courtyard gate, hangings were spread out to cover a length of fifteen cubits.

To keep this span of material upright and secure, a precise system of supports was utilized. Three pillars, resting firmly in three matching sockets, held up the hangings. These pillars were evenly distributed along the fifteen-cubit stretch, with one support positioned exactly every five cubits.