'Sacrifice' in the Bible

And Isaac said to Abraham, “My father!” And he said, “Here I am, my son.” Isaac said, “Look, the fire and the wood, but where is the lamb for the burnt offering?”

Then Abraham looked up and glanced around, and behold, behind him was a ram caught in a thicket by his horns. And Abraham went and took the ram and offered it up for a burnt offering (ascending sacrifice) instead of his son.

Then Jacob offered sacrifice upon the mount, and called his brethren to eat bread: and they did eat bread, and tarried all night in the mount.