From Sea to Sea: The King Delivers the Needy
The king’s dominion stretches “from sea to sea,” foreign rulers bring tribute, and yet the reason for his greatness is repeatedly ethical: he delivers the needy, poor, and oppressed, and regards their blood as precious. Universal rule and compassionate justice belong together.
The scope naturally feeds Jewish and Christian messianic expectation, and Jesus’ kingdom provides the Christian canonical fulfillment of that ideal. But readers should not reduce the passage to geography charts; its central royal test is how the ruler treats people with little power.