Psalms 10:15

Break thou the arm of the wicked and the evil man: seek out his wickedness till thou find none.

To break the arm is to break strength, so that the wicked lose the power to carry out harm and their wrongdoing is brought to a complete end. The prayer asks God to search out evil thoroughly until none of it remains to be found. This belongs to those who set themselves against the work of God while relying on their own might. Against such opposition the Lord restrains human power and overturns the plans formed in self-confidence.