Isaiah 65:21-22

Likewise there will be abundant safety and plenty when God brings new life to the world (cf. Isaiah 17:11; Leviticus 26:16; Deuteronomy 28:15-46; Amos 5:11; Zephaniah 1:13). Again, people will live longer: longer than God’s other creations such as trees, and longer than their own "creations," such as buildings and bridges that normally outlive them (cf. Isaiah 40:6-8).

"What a promise, to have the time to do something right and then the opportunity to enjoy it to the full!" [Note: Oswalt, The Book . . . 40-66, p. 660.]

Note that people will continue to work. The blessing of work will characterize the messianic age, though people will not have to labor as they did under the curse (Genesis 3:17-19).