In his days shall the righteous flourish; and abundance of peace so long as the moon endureth. In his days shall the righteous flourish - There was nothing but peace and prosperity all the days of Solomon: for, "In his days Judah and Israel dwelt safely; every man under his vine and under his fig-tree, from Dan even to Beersheba;" 1 Kings 4:25.
So long as the moon endureth - עד בלי ירח ad beli yareach, "Till there be no more moon."