And it came to pass in the fifth year of king Rehoboam, that Shishak king of Egypt came up against Jerusalem:
Read Chapter 14
Ephrem The Syrian
Rehoboam spread and increased the idolatry introduced by Solomon after being instigated in this sin by his Gentile mother Naamah. And this seems to be hinted at in the Scripture which reports Rehoboam’s apostasy just after mentioning his impious mother. Many examples that occur in this book, such as those of Maacah, Jezebel and Athaliah, amply demonstrate how the marriages made with foreign women had the power to corrupt the customs of the Israelites in this regard. Therefore, since God wanted to punish the offense caused by the violation of piety, he allowed Shishak, the king of Egypt, to enter Judea with a huge army, to conquer Jerusalem, to plunder the temple and the royal house and to destroy everything. - "On the First Book of Kings 14.25"
Sesac. See chap. xi. 40. He was allied to Jeroboam, (Calmet) so that he might come to his assistance, (Haydock) being attracted by the ivory throne, (Rabbins) and the immense riches of Jeroboam. (Calmet)
Roboam was informed by Semeias, that resistance would be fruitless; and being humbled, he repaired more frequently to the temple, ver. 18. But his piety was of short duration, as it was influenced only by fear, 2 Paralipomenon xii. 14.