Blood sacrifice has been an important pagan ritual for thousands of years. The idea has been to "please" God. God wants neither rituals nor blood sacrifice.
God roams the streets and loves blood sacrifice
12:23 ----; and when he [Lord] seeth the blood upon the lintel, and on the two side posts, the LORD will pass over the door, ----.
- The Son-ship of Jesus Christ, Trinity, the Lamb of God and his blood sacrifice are not the teachings of Jesus. St. Paul spun the entire matrix from the ancient Pagan cults that believed in dying and resurrecting gods. (The Theory of Good and Evil - Hastings Rashdall)