'Reigned' in the Bible

Ish-Bosheth the son of Saul [was] forty years old when he became king over Israel and he reigned two years; however, the house of Judah {followed} David.

David [was] thirty years old when he began to reign; he reigned forty years.

He reigned over Judah at Hebron [for] seven years and six months; and he reigned over all Israel and Judah at Jerusalem [for] thirty-three years.

David reigned over all of Israel, and he was administering justice and righteousness for all his people.