'Hater' in the Bible

And Saul said to Michal, why have you been false to me, letting my hater go and get safely away? And in answer Michal said to Saul, He said to me, Let me go, or I will put you to death.

And David's men said to him, Now is the time when the Lord says to you, I will give up your hater into your hands to do with him whatever seems good to you. Then David, getting up, took the skirt of Saul's robe in his hand, cutting off the end of it without his knowledge.

If a man comes across his hater, will he let him get away safe? so may you be rewarded by the Lord for what you have done for me today.

Then Abishai said to David, God has given up your hater into your hands today; now let me give him one blow through to the earth with his spear, and there will be no need to give him a second.