As the days of a tree... — We may think of the cedars of Lebanon or the oaks of Bashan as furnishing the prophet with the ideal standard of longevity. Commonly, as by Homer and other poets, the lives of men have been compared to that of the leaves of deciduous trees; here they are compared to the life of the tree itself. The prophet is still speaking, not of national, but of individual life.
Related Commentaries of Isaiah 65:22
Isaiah 65:22
22 They shall not build, and another inhabit; they shall not plant, and another eat: for as the days of a tree are the days of my people, and mine elect shall long enjoy the work of their hands.