14 “For one day in Your courts is better than a thousand”. Those courts they were for which he sighed, for which he fainted. “My soul longs and fails for the courts of the Lord:” one day there is better than a thousand days. Men long for thousands of days, and wish to live here long: let them despise these thousands of days, let them long for one day, which has neither rising nor setting: one day, an everlasting day, to which no yesterday yields, which no tomorrow presses. Let this one day be longed for by us. What have we to do with a thousand days? We go from the thousand days to one day; let us hasten to that one day, as we go from strength to strength.
Source: The Enarrations, or Expositions, on the Psalms (New Advent)