'Hater' in the Bible

And they took the head of Ish-bosheth to David in Hebron, and said to the king, Here is the head of Ish-bosheth, the son of Saul your hater, who would have taken your life; the Lord has taken payment for the wrongs of my lord the king from Saul and his seed today.

He made me free from my strong hater, from those who were against me, because they were stronger than I.