He will judge the poor with righteousness and save the children of the needy. They shall fear you as long as the sun and the moon endure, throughout all generations. What is the meaning of "David, for all generations"? It refers to a generation that has no other generation after it.
He shall come down like rain upon the mown grass, like showers that water the earth. In his days shall the righteous flourish, and abundance of peace so long as the moon endureth. As it is written, "The righteous shall flourish like the palm-tree; he shall grow like a cedar in Lebanon. They are planted in the house of the Lord; they shall flourish in the courts of our God. They shall still bring forth fruit in old age; they shall be full of sap and richness. (Ps. 92:13-14)" Just as the sun and the moon give light to this world, so shall the righteous give light to the world to come, as it is said, "And nations shall walk at thy light, and kings at the brightness of thy rising.(Isaiah 60:3)"