'Spare' in the Bible

And his attendant said, How shall I set this before a hundred men? And he said, Give the people that they may eat; for thus saith Jehovah: They shall eat, and shall have to spare.

If we tell ourselves, "Let's remain in the city,' we'll die there since there's famine in the city. But if we sit here, we'll die, too. So let's go over to the Arameans! If they spare our lives, we'll live, and if they kill us"we're dying anyway!"

Then Jehu ordered, “Take them alive.” So they took them alive and then slaughtered them at the pit of Beth-eked—42 men. He didn’t spare any of them.