'Blood' in the Bible

Their feet are swift to shed blood:

Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;

Much more then, being now justified by his blood, we shall be saved from wrath through him.

and they are not all the children of Abraham because they are his descendants [by blood], but [the promise was]: “Your descendants will be named through Isaac” [though Abraham had other sons].

"Lord, they have put Thy Prophets to death, and have overthrown Thy altars; and, now that I alone remain, they are thirsting for my blood"?