Albert Barnes 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 - Let them be ashamed. That is, let them experience the kind of shame and confusion that results from their plans not succeeding, or from being foiled and baffled in their schemes.

And troubled - Disturbed; put to confusion. Let them be troubled as people are who are unsuccessful in their projects.

Forever - As a people; as confederated nations; as united in such an unholy alliance. Let them never again be able to combine in this way, or to form a compact for the destruction of your people.

This does not refer to them as individuals, but as nations. It is a prayer that they may be so discomfited now that they may see the wickedness and folly of all such efforts, and that they may never again form such a combination.

Yea, let them be put to shame - By utter failure in their schemes.

And perish - Not individually, but as combined - as an alliance. Let there be a complete end to such a confederacy, so that it shall never be seen again.