Psalm 83 – Skeptic's Annotated Bible answered

1 Keep not thou silence, O God: hold not thy peace, and be not still, O God.

2 For, lo, thine enemies make a tumult: and they that hate thee have lifted up the head.

3 They have taken crafty counsel against thy people, and consulted against thy hidden ones.

4 They have said, Come, and let us cut them off from being a nation; that the name of Israel may be no more in remembrance.

"Let us cut them off from being a nation; that the name of Israel may be no more in remembrance."
Recently an ancient Psalter was found which was reported to have been open to Psalm 83. Of course, to the Left Behind folks it's just one more sure sign that the end is near.
But the Psalter was actually opened to Psalm 84 (Psalm 83 in the Latin Vulgate Bible).
The Irish Psalter: Open to Psalm 84 (Not 83)

5 For they have consulted together with one consent: they are confederate against thee:

6 The tabernacles of Edom, and the Ishmaelites; of Moab, and the Hagarenes;

7 Gebal, and Ammon, and Amalek; the Philistines with the inhabitants of Tyre;

8 Assur also is joined with them: they have holpen the children of Lot. Selah.

9 Do unto them as unto the Midianites; as to Sisera, as to Jabin, at the brook of Kison:

(83:9-18) The psalmist asks God to " do unto them as unto the Midianites ... which became as dung for the earth."
How should we treat our enemies?

10 Which perished at Endor: they became as dung for the earth.

11 Make their nobles like Oreb, and like Zeeb: yea, all their princes as Zebah, and as Zalmunna:

12 Who said, Let us take to ourselves the houses of God in possession.

13 O my God, make them like a wheel; as the stubble before the wind.

14 As the fire burneth a wood, and as the flame setteth the mountains on fire;

15 So persecute them with thy tempest, and make them afraid with thy storm.

16 Fill their faces with shame; that they may seek thy name, O LORD.

17 Let them be confounded and troubled for ever; yea, let them be put to shame, and perish:

18 That men may know that thou, whose name alone is JEHOVAH, art the most high over all the earth.