Psalms 72: A king's greatness is measured beside the needy

Psalm 72 prays for a king whose authority receives its shape from God's judgments and righteousness. The first measure of that rule is not military display or accumulated wealth but what happens to poor people, needy children, and those facing an oppressor. The same standard continues when the reign expands from sea to sea and distant kings bring gifts. The reason given for such honor is startlingly small in scale: a needy person cries with no helper, and the king delivers him. Rain, grain, flourishing cities, enduring name, and international blessing all grow around that concern for life. The poem stretches beyond the easy boundaries of one ordinary reign, which is why its language later feeds messianic expectation. Yet the close prevents royal greatness from becoming self-contained. The final blessing belongs to the Lord God of Israel, whose glory, not the king's, is asked to fill the whole earth.