“In the fifth year of King Rehoboam, King Shishak of Egypt came up against Jerusalem. He took away the treasures of the house of Yahweh and the treasures of the king’s house. He took everything. He also took away all the shields of gold that Solomon had made. King Rehoboam made shields of bronze instead. He committed them to the hands of the officers of the guard, who kept the door of the king’s house. As often as the king went into the house of Yahweh, the guard carried them and brought them back to the guardroom.”
The Egyptian King Shishak was good friends with the northern King Jeroboam as in chapter 11, so that he may have sided with him against Rehoboam. Thus this invasion may have had a dual purpose, to help Jeroboam and take a lot of gold back to Egypt. This would seem to indicate that the wonderful temple of Yahweh had deteriorated within one generation, especially since King Shishak took everything. However, Rehoboam’s guards at the temple now had bronze shields instead of gold shields.