Psalm 58

Talk about a troubling verse. Psalm 58:10 is definitely problematic. "The righteous will be glad when they are avenged, when they bathe their feet in the blood of the wicked." (NIV) I can say that at first glance this does not present a positive picture of the people who serve Yaweh God, and it probably reflects poorly on him. Then we consider the time frame and the situations that the psalmist faced. David is attributed with this psalm and in his day there were two groups of people who were wicked. There were the people of Israel who stubbornly rejected God's commands.  There were also the descendant of those horrific Caanannites. According to God's justice both of these groups were to be killed. In order to rid the inheritance of such rebellion.
Stuart