שמות, פרק ל״ט, פסוק י״ז

The assembly of the High Priest's garments required careful attention to ensure the Breastplate was securely fastened. To hold it in place, two gold chains were crafted and linked directly to two rings located at the outer edges of the garment [ביאור שטיינזלץ].

A close comparison between God's original instructions and the final record of the work reveals a subtle detail in how these pieces came together. While the initial command directed the artisans to attach the chains to the edges of the Breastplate, the account of the actual construction describes the gold chains being placed directly upon those edges [מנחת שי].