'Ruthless' in the Bible

For strangers have risen against meAnd violent men have sought my life;They have not set God before them. Selah.

Rescue me, O my God, from the hand of the wicked (godless),From the grasp of the unrighteous and ruthless man.

O God, arrogant and insolent men have risen up against me;A band of violent men have sought my life,And they have not set You before them.