thou enemy. Same as the lawless one of Psalms 9:5.
destructions are come. complete is the destruction.
a perpetual end. for evermore. Some codices, with two early printed editions, Septuagint, Syriac, and Vulgate, read "swords are abandoned".
Related Commentaries of Psalms 9:6
Psalms 9:6
6 O thou enemy, destructions are come to a perpetual end: and thou hast destroyed cities; their memorial is perished with them.