2 Samuel 2:11
And the number of days that David was king in Hebron over the house of Judah was seven years and six months.
1 Kings 2:11
The days that David reigned over Israel were forty years; he reigned seven years in Hebron, and he reigned thirty-three years in Jerusalem.
2 Samuel 5:4-5
David was thirty years old when he began to reign, and he reigned forty years.
1 Chronicles 3:4
These six were born unto him in Hebron, and there he reigned seven years and six months, and in Jerusalem he reigned thirty-three years.
1 Chronicles 29:27
And the time that he reigned over Israel was forty years; he reigned seven years in Hebron, and he reigned thirty-three years in Jerusalem.