Faith made the sacrifice which Abel offered to God a better sacrifice than Cain's, and won him renown as a righteous man, God himself establishing his renown by accepting his gifts; and it is by the example of his faith that Abel, though dead, still speaks.

It was faith that enabled Abraham, when put to the test, to offer Isaac as a sacrifice--he who had received the promises offering up his only son,

For he argued that God was able even to raise a man from the dead--and indeed, figuratively speaking, Abraham did receive Isaac back from the dead.

Get rid entirely of the old leaven, so that you may be like new dough-free from leaven, as in truth you are. For our Passover Lamb is already sacrificed-Christ himself;

saying, as he did so-- "This is the blood that renders valid the Covenant which God has commanded to be made with you."

but into the inner only the High Priest goes, and that but once a year, and never without taking the blood of a victim, which he offers on his own behalf, and on behalf of the errors of the People.

Nor was it with the blood of goats and calves, but with his own blood, that he entered, once and for all, into the Sanctuary, and obtained our eternal deliverance.

so it is with the Christ. He was offered up once and for all, to 'bear away the sins of many'; and the second time he will appear--but without any burden of sin--to those who are waiting for him, to bring Salvation.

Indeed, under the Law, almost everything is purified with blood; and, unless blood is shed, no forgiveness is to be obtained.