'Justification' in the Bible

if I have rewarded those who did me good with evil, if I have plundered my enemy without justification,

Without justification they laid a snare for me; without justification they dug a pit to trap me.

Do not let my deceitful enemies gloat over me, nor let those who hate me without justification mock me with their eyes.

My enemies hunted me like a bird, viciously and without justification.