שמות, פרק כ״ו, פסוק ד׳

The massive structure of the Tabernacle required an equally enormous cover. To make this heavy material manageable to carry during the long journeys through the desert, God commanded that the cover be constructed in two separate sections [חזקוני]. In order to unite these two distinct halves into one continuous canopy over the entire Tabernacle, a connecting mechanism had to be installed along their edges [רלב״ג, שד״ל].

This connection was achieved through a series of loops made from blue-dyed wool [ביאור שטיינזלץ]. Functioning as ties that wove the two sides together [רש״י, רש״ר הירש], these loops were crafted with a twisted, spiral-like shape [אבן עזרא, מנחת שי]. They were sewn along the outermost border of the final curtain in the first set, with a matching row attached to the final edge of the second set [רש״י, רשב״ם, ביאור יש״ר, אבן עזרא]. Once aligned, these loops allowed clasps to be inserted, locking the vast cover securely in place [ביאור יש״ר, אבן עזרא הקצר].

Although the instructions for both sets of curtains appear identical, a deliberate variation in how their edges are described reveals a deeper, structural distinction based on the specific spaces they covered [קאסוטו, העמק דבר]. The first set of curtains was positioned directly over the Holy of Holies. Because of the supreme sanctity of this inner chamber, its loops were not placed flush against the absolute edge. Instead, they were sewn slightly inward, drawing the blue loops—which represented high holiness—further into the sacred space of the Holy of Holies.

By contrast, the second set of curtains covered the main hall, a space with a comparatively lower degree of holiness. Its loops were sewn exactly on the boundary line, without extending inward over the hall. Despite this, the connecting edge of this second set held a special status. It is characterized by a concept that denotes not merely an endpoint, but a position of authority and prominence. This specific border was elevated in importance simply because it served as the direct point of connection to the Holy of Holies [העמק דבר].