John Gill Commentary Lamentations 3:60

"Thou hast seen all their vengeance and all their devices against me." — Lamentations 3:60 (ASV)

You have seen all their vengeance
The spirit of revenge in them; their wrath and fury, and how they burn with a desire of doing mischief; as well as their revengeful actions, conduct, and behaviour: [and] all their imaginations against me ;
their secret contrivances of mischief, their plots and schemes they devise to do hurt to me.