2 Samuel 5:4-5

(4) David was thirty years old when he began to reign, and he reigned forty years. (5) In Hebron he reigned over Judah seven years and six months: and in Jerusalem he reigned thirty and three years over all Israel and Judah.

Was there not somewhat similar to our spiritual David in all this? Jesus entered on his public ministry at about the age of thirty. See Luke 3:23. And as Hebron was the city of the priests, and Jerusalem the city of the kings, were not these shadowy representations of the gospel state? Joshua 14:14; Revelation 21:10.