'Opponent' in the Bible

Come to terms quickly with your opponent while you are on the way to court, or your opponent may hand you over to the judge, and the judge to the guard, and you will be thrown into prison.

For example, when you go with your opponent in front of a ruler, do your best to settle with him on the way there. Otherwise, you will be dragged in front of the judge, and the judge will hand you over to an officer, and the officer will throw you into prison.

and a widow was in that city, and she was coming unto him, saying, Do me justice on my opponent,

and that neither in the Temple nor in the synagogues, nor anywhere in the city, did they find me disputing with any opponent or collecting a crowd about me.

If one of you has a grievance against an opponent, does he dare to go to law before irreligious men and not before God's people?

Your message is to be sound beyond reproach, so that the opponent will be ashamed, having nothing bad to say about us.

Be clear-minded and alert. Your opponent, the Devil, is prowling around like a roaring lion, looking for someone to devour.