The replacement of magnificent gold shields with simpler ones marks a profound turning point in the kingdom, reflecting both a severe economic decline and a deep shift in the king's spiritual state. Rehoboam was forced to craft shields of copper simply because he could no longer afford the lavish gold ones of the past [ביאור שטיינזלץ]. Yet, this downgrade also carried a deeper spiritual purpose. The new shields were crafted as part of a process of repentance, meant to serve as a constant reminder to the king of the sins that had cost him the kingdom's greatest treasures [מלבי״ם].
The king entrusted these new shields to the officers of the royal guard. Although made only of copper, they were still considered too valuable for the guards to carry on a daily basis. Instead, they were placed under the permanent watch of the palace guards [ביאור שטיינזלץ]. The established routine was that whenever the king traveled from his palace to the House of God, the guards would carry the shields before him. Once the visit concluded, the shields were safely returned to the guards' chamber [רד״ק, אברבנאל].
Commentators offer different perspectives on the need for this armed, ceremonial escort. It may have been maintained simply to project royal grandeur and glory [רד״ק]. However, a more central view suggests that Rehoboam was driven by a genuine fear of rebellion from the people. His fear for his life was so intense that he did not dare approach the House of God without a heavy detail of armed men surrounding and protecting him [רד״ק, אברבנאל]. Despite this need for heavy security, the king's continued journeys to the House of God reveal a positive inner change. His repeated visits show that in the wake of disaster, he humbled himself, corrected his ways, and returned to God [רד״ק].