Zechariah 8:4

Thus saith the Lord of hosts
These words are used at every consolatory promise given, as Kimchi observes, for the confirmation of it: there shall yet old men and old women dwell in the streets of
Jerusalem;
signifying that the inhabitants should be very healthful; no sweeping disease or calamity should be among them, but they should live to a good old age, as follows: and every man with his staff in his hand for very age;
or "because of multitude of days" ^F9; the length of time they should have lived in the world, being worn out, not with diseases, but with old age, and therefore obliged to use a staff when they walk the streets for their support; all which is an emblem of the healthfulness of the inhabitants of Zion, who have no reason to complain of sickness, because their sins are forgiven them; and of that spiritual and eternal life, which they that are written among the living in Jerusalem do enjoy; who are in understanding men, fathers in Christ, and are growing up to the measure of the stature of the fulness of Christ; see ( Isaiah 65:20 ) .