The hem of the High Priest's robe was adorned with a unique arrangement of bells and pomegranates. This design was not merely for decoration, but carried deep practical and spiritual significance regarding the proper way to approach holiness and the presence of God.
The primary purpose of the bells was to ring when the High Priest entered the sanctuary. This served as a lesson in basic respect and manners. Just as a person would never suddenly burst into the palace of a human king without permission, the High Priest had to announce his arrival by making a sound before entering the presence of God. This principle serves as a model for proper behavior between people as well, teaching that one should never enter even a friend's home abruptly [פרדס יוסף]. On a practical level, the pomegranate itself acted as an acoustic aid. It was shaped so that the bell would strike against it to produce its ringing sound [חזקוני].
Regarding how these items were arranged on the hem of the robe, there are different perspectives. The primary approach among commentators is that they were hung side by side in an alternating pattern—a golden bell, then a pomegranate, and so on all around the hem [רש"י, קאסוטו, ביאור יש"ר, רס"ג, רשב"ם, אונקלוס והרמב"ם מובאים בברכת אשר ובהעמק דבר]. This arrangement was designed with the items placed closely together at equal distances, ensuring there were no large gaps between them [העמק דבר].
In contrast, a completely different approach suggests that the bells were placed directly inside the pomegranates. In this view, the pomegranates were crafted as hollow, closed fruits, with the bells tucked inside yet still visible from the outside [רמב"ן]. The reasoning behind this design is that if the bells and pomegranates were hung entirely separate from one another, the pomegranates would serve no practical function. Furthermore, if they were intended purely for visual beauty, it would have been more fitting to shape them like golden apples instead [הטור הארוך]. According to tradition, the total number of bells decorating the High Priest's robe was exactly seventy-two [ביאור שטיינזלץ].