'Mercy' in the Bible

And the Lord had mercy on Hannah and she gave birth to three sons and two daughters. And the young Samuel became older before the Lord.

Go now and put Amalek to the sword, putting to the curse all they have, without mercy: put to death every man and woman, every child and baby at the breast, every ox and sheep, camel and ass.

He took Agag, king of the Amalekites, prisoner, and put all the people to the sword without mercy.

And let not your mercy ever be cut off from my family, even when the Lord has sent destruction on all David's haters, cutting them off from the face of the earth.