Charles H. Spurgeon on Psalms 83:10

Which perished at Endor. There was the centre of the carnage, where the heaps of the slain lay thickest. They became as dung for the earth, manuring it with man; making the earth, like Saturn, feed on its own children. War is cruel, butt in this case it avengements were most just, —those who would not give Israel a place above ground are themselves denied a hiding place under the ground; they counted God's people to be as dung, and they became dung themselves. Asaph would have the same fate befell other enemies of Israel; and his prayer was a prophecy, for so it happened to them.