'Show Mercy' in the Bible

and show mercy upon thousands among them that love me and keep my commandments.

and when Jehovah thy God shall deliver them up before thee, and thou shalt smite them; then thou shalt utterly destroy them: thou shalt make no covenant with them, nor show mercy unto them;

Nothing from that which is put under the ban shall cling to your hand, in order that the Lord may turn from His burning anger and show mercy to you, and have compassion on you and make you increase, just as He has sworn to your fathers,