Albert Barnes Commentary Psalms 10:15

"Break thou the arm of the wicked; And as for the evil man, seek out his wickedness till thou find none." — Psalms 10:15 (ASV)

Break thou the arm of the wicked – The arm is the instrument by which we effect a purpose, especially in wielding a sword or a spear, as in battle; and if the arm is broken, we are powerless. The psalmist, therefore, prays that God would render the wicked, in this respect, powerless.

And the evil man – Of all the evil, or the wicked. In regard to the prayer here, see the note at Psalms 5:10.

Seek out his wickedness until thou find none – Until it is all punished; until there has been a full recompense. This is a wish that no wicked act of his should be forgotten; that exact justice should be rendered.

If it is right to punish the wicked at all, it is right to deal with them just as they deserve. If any wickedness may properly be punished, all may be; and, whatever may occur, the sinner may be assured that he will not be punished merely for a part of his sins. If God punishes the wicked at all, there will be nothing left unpunished.