1 Chronicles 29:26
Now David, the son of Jesse, was king over all Israel.
--------------------
1 Chronicles 29:27
For forty years he was ruling as king over Israel, seven years in Hebron and thirty-three years in Jerusalem.
-----
2 Samuel 5:4
David was thirty years old when he became king, and he was king for forty years,
-----
1 Kings 2:11
David was king over Israel for forty years: for seven years he was king in Hebron and for thirty-three years in Jerusalem.
Public Domain