'Enemy' in the Bible

And they brought the head of Ish-bosheth unto David to Hebron, and said to the king, Behold, the head of Ish-bosheth, the son of Saul, thine enemy, who sought thy life; and Jehovah hath avenged my lord the king this day of Saul, and of his seed.

He delivered me from my strong enemy, From them that hated me; for they were too mighty for me.