Psalm 58:10

10 The righteous will be glad when they are avenged, when they dip their feet in the blood of the wicked.

Read Psalm 58:10 Using Other Translations

The righteous shall rejoice when he seeth the vengeance: he shall wash his feet in the blood of the wicked.
The righteous will rejoice when he sees the vengeance; he will bathe his feet in the blood of the wicked.
The godly will rejoice when they see injustice avenged. They will wash their feet in the blood of the wicked.