Why must a kingdom and a king be considered together?

Les teaches that the Abrahamic covenant contained three basic promises: out of Abraham would come a nation of people, Israel; they would be placed in their own geographical land; and because people in a land must have a government, God Himself would come as their King, Messiah, Redeemer, and Savior. All other covenants are wrapped up inside this one. Les repeatedly qualifies that a viable kingdom cannot exist without a king, while a king is of no earthly use unless he has a kingdom; therefore, when you see these two, they must come together. When Jesus came and John the Baptist presented Him as Israel's King, the long view was the kingdom, which Israel was to understand.