Matthew 20:28

but to serve, and to give his life a ransom for many.

Revelation 5:9

And they sing a new song, saying, Worthy art thou to take the book and to open the seals thereof; for thou wast slain and hast redeemed us to God by thy blood, out of 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
but to serve, and to give his life a ransom for many.
Revelation 5:9
And they sing a new song, saying, Worthy art thou to take the book and to open the seals thereof; for thou wast slain and hast redeemed us to God by thy blood, out of every tribe, and tongue, and people, and nation,