Yea, the set time is come— The time fixed for the continuance of the Babylonish captivity was 70 years. The set, or fixed time, here seems to mean, the time appointed for the restoration of the people, and the rebuilding of the temple. See Jeremiah 39:10-11, and the first note on this psalm.
Related Commentaries of Psalms 102:13
Psalms 102:13
13 Thou shalt arise, and have mercy upon Zion: for the time to favour her, yea, the set time, is come.