Chapter 85

Also the Sons of Korah.

2022 - This verse:

4 Restore us again, O God of our salvation, and put away your indignation toward us! [Psa 85:4 ESV]

The Psalm talks about how God previously turned his anger away from the house of Jacob.  The implication here is that God has turned away from them again.  I haven't seen any clues as to when this Psalm was written.  And Son's could be generations after Korah.  This could be about Assyria or Babylon or anyone before or after them.  All that is certain is that God and Israel are once again at odds, and the Psalmist thinks it is pretty serious.

2022 - This oft-quoted verse:

6 Will you not revive us again, that your people may rejoice in you? [Psa 85:6 ESV].  Doesn't seem to be about "re-invigoration" of lukewarm Christians.  It seems to be about a whole nation turned away from God.  Like the US seems to be today.

Thanking God for restoring Israel, for turning away his wrath.  Asking that He return to them.