Matthew Henry on 1 Kings 11:41–end
We have here the conclusion of Solomon's story, and in it, 1. Reference is had to another history then extant, but (not being divinely inspired) since lost, the Book of the Acts of Solomon, Kg1 11:41. Probably this book was written by a chronologer or historiographer, whom Solomon employed to write his annals, out of which the sacred writer extracted what God saw fit to transmit to the church. 2. A summary of the years of his reign (Kg1 11:42): He reigned in Jerusalem (not, as his father, part of his time in Hebron and part in Jerusalem), over all Israel (not as his son, and his father in the beginning of his time, over Judah only), forty years. His reign was as long as his father's, but not…
Read the whole note in the consoleJamieson-Fausset-Brown on 1 Kings 11:40
Shishak--He harbored and encouraged the rebellious refugee, and was of a different dynasty from the father-in-law of Solomon.
Next: 1 Kings Chapter 12
Adam Clarke on 1 Kings 11:42
Solomon reigned - forty years - Josephus says fourscore years, which is sufficiently absurd. Calmet supposes him to have been eighteen years old when he came to the throne, and that he died A.M. 3029, aged fifty-eight years; and, when we consider the excess in which he lived, and the criminal passions which he must have indulged among his thousand wives, and their idolatrous and impure worship, this life was as long as could be reasonably expected.
John Gill on 1 Kings 11:42
And the time that Solomon reigned in Jerusalem, over all Israel, was forty years. The same says Eupolemus (z), an Heathen writer, who makes him to live but fifty two years; which is the common tradition of the Jews, who suppose he was but twelve years of age when he began to reign; which is to be confuted from the age of his son Rehoboam, see 1 Kings 14:21. Josephus (a), on the other hand, makes him to live to too great an age, who says that he reigned eighty years, and lived to ninety four.
(z) Apud Euseb. Praepar. Evangel. l. 9. c. 34. (a) Antiqu. l. 8. c. 7. sect. 8.