John Gill Commentary Psalms 83:17

"Let them be put to shame and dismayed for ever; Yea, let them be confounded and perish;" — Psalms 83:17 (ASV)

Let them be confounded and troubled for ever
As long as they are in this world, and to all eternity in another; a dreadful portion this:

yes, let them be put to shame, and perish ;
wholly and eternally, in soul and body, for evermore.