1 Kings 11:42
Thus the time that Solomon reigned in Jerusalem over all Israel was forty years.
What it says
Solomon reigns in Jerusalem over all Israel for forty years.
What it is doing
It states the length of his reign.
In context
41As for the rest of the acts of Solomon — all that he did, as well as his wisdom — are they not written in the Book of the Acts of Solomon? 42Thus the time that Solomon reigned in Jerusalem over all Israel was forty years. 43And Solomon rested with his fathers and was buried in the city of his father David. And his son Rehoboam reigned in his place.