2 Samuel 5:4–5
4 David was thirty years old when he began to reign, and ahe reigned forty years. 5 aAt Hebron he reigned over Judah bseven years and six months, and at Jerusalem he reigned over all Israel and Judah thirty-three years.1
1 Chronicles 29:26–27
The Death of David
26 Thus David the son of Jesse reigned over all Israel. 27 The utime that he reigned over Israel was forty years. He reigned seven years in Hebron and thirty-three years in Jerusalem.