1 Kings 14:25

The examination of the famous inscription of Shishak at Karnak has resulted in the proof that the expedition commemorated was directed against Palestine, and has further thrown a good deal of light on the relations of the two kingdoms at the period. Of the fifteen fenced cities fortified by Rehoboam in the early part of his reign 2 Chronicles 11:5, three, Shoco, Adoraim, and Aijalon are distinctly mentioned among Shishak’s conquests. Other towns of Judah or Benjamin also occur. Further, a considerable number of the captured cities are in the territory of Jeroboam: these cities “are either Canaanite or Levitical.” Hence, we gather, that, during the four years which immediately followed the separation of the kingdoms, Rehoboam retained a powerful hold on the dominions of his rival, many Canaanite and Levitical towns acknowledging his sovereignty, and maintaining themselves against Jeroboam, who probably called in Shishak mainly to assist him in compelling these cities to submission. The campaign was completely successful.