Edom. Note the tenfold confederation of enemies in verses: Psa_83:6-9, followed by the sevenfold destruction in verses: Psa_83:10-12; the two making the number 17, the sum of the two numbers (10 ordinal perfection or completeness, and 7 spiritual perfection): 17 being the seventh prime number. Thus the three numbers correspond with the conspiracy of man, and judgment of God. See App-10.