'Avenging' in the Bible

“Now therefore, my lord, as the Lord lives, and as your soul lives, since the Lord has restrained you from shedding blood, and from avenging yourself by your own hand, now then let your enemies and those who seek evil against my lord, be as Nabal.

and blessed be your discernment, and blessed be you, who have kept me this day from bloodshed and from avenging myself by my own hand.