John Gill Commentary Psalms 79:4

"We are become a reproach to our neighbors, A scoffing and derision to them that are round about us." — Psalms 79:4 (ASV)

We are become a reproach to our neighbours That is, those that remained; so the Jews were to the Edomites, especially at the time of the Babylonish captivity, (Psalms 137:7) ,

a scorn and derision to them that are round about us ; as the Christians in all ages have been to the men of the world, and especially will be insulted and triumphed over when the witnesses are slain, (Revelation 11:10) .