'Opponent' in the Bible

Then each man grabbed his opponent by the head and thrust his sword into his opponent’s side so that they all died together. So this place, which is in Gibeon, is named Field of Blades.

and each one struck down his opponent. So the Arameans fled and Israel pursued them, but Ben-hadad king of Aram escaped on a horse with the cavalry.

May my enemy be like the wickedand my opponent like the unjust.

If only I had someone to hear my case!Here is my signature; let the Almighty answer me.Let my Opponent compose His indictment.

Don’t take a matter to court hastily.Otherwise, what will you do afterwardif your opponent humiliates you?

Make your case with your opponentwithout revealing another’s secret;