שמות, פרק ל״ה, פסוק ט׳

The Israelites contributed an array of precious materials to construct the Tabernacle, including rare gems destined to beautify the garments of the High Priest. These stones were not merely decorative but held a central function in the sacred clothing. Among the donations were yellowish-brown gems, alongside other precious stones specifically prepared to be set into the garments. The yellowish-brown stones were designated for the Ephod, while the setting stones were dedicated to the Breastplate [ביאור שטיינזלץ].

Beyond the physical beauty and high value of these garments, their creation highlights a unique legal dynamic. The fabric of both the Ephod and the Breastplate contained a forbidden mixture of wool and linen. Normally, wearing such a blended fabric is strictly prohibited. However, the specific Commandment to create and wear these priestly garments overrides the standard restriction. This follows a broader principle that an active, positive Commandment takes precedence over a negative prohibition [תיבת גמא].