Matthew 20:28

just as the Son of Man did not come to be served, but to serve, and to give his life as a ransom for many."

Revelation 5:9

And they sang a new song, saying, "Worthy are you to take the scroll and to open its seals; for you were slain, and with your blood purchased men for God from every tribe and tongue and people and nation.

Treasury of Scripture Knowledge

Summary

Only be sure that thou eat not the blood: for the blood is the life; and thou mayest not eat the life with the flesh.

Bible References

The blood is

Matthew 20:28
just as the Son of Man did not come to be served, but to serve, and to give his life as a ransom for many."
Revelation 5:9
And they sang a new song, saying, "Worthy are you to take the scroll and to open its seals; for you were slain, and with your blood purchased men for God from every tribe and tongue and people and nation.