He shall come down, &c. To wit, by the influences of his government upon his people, the administration of which shall be so gentle and easy, that it shall refresh and revive the hearts of his subjects, and render them a flourishing people. But this phrase much better agrees to Christ, who was yet to come, and who did come down from heaven, and brought or sent down from thence his refreshing and fertilizing doctrine, often compared to rain, and the sweet and powerful influences of his Spirit. Like rain upon the mown grass Which it both refreshes and causes to grow and flourish, and therefore was very acceptable, especially in Canaan. where rain was more scarce, and more necessary than in many other places, because of the scorching heat, and the natural dryness of the soil, and the want of rivers to overflow or water the land.
Related Commentaries of Psalms 72:6
Psalms 72:6
6 He shall come down like rain upon the mown grass: as showers that water the earth.