1 Kings 11:42

42 The time that Solomon reigned in Jerusalem over all Israel was forty years.

1 Kings 11:42 In-Context

40 Solomon sought therefore to kill Jeroboam; but Jeroboam promptly fled to Egypt, to King Shishak of Egypt, and remained in Egypt until the death of Solomon.
41 Now 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?
42 The time that Solomon reigned in Jerusalem over all Israel was forty years.
43 Solomon slept with his ancestors and was buried in the city of his father David; and his son Rehoboam succeeded him.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.