שמות, פרק ל״ו, פסוק י״ז

Constructing the tent of the Tabernacle required joining separate curtains into a single, unified structure. To achieve this unity, loops were crafted along the edges of the fabric, allowing the pieces to connect securely to one another.

When detailing the placement of these loops along the edge, the wording characterizes the second curtain not merely as an object being attached, but as an active participant in the joining process. Rather than describing a static seam, the description portrays the second curtain as the one actively making the connection. Alternatively, the edge of the fabric can be understood as existing entirely for the purpose of this second connection, emphasizing that the border itself was defined by its role in bringing the tent together [רש ר הירש].