Why is there so much blood in the Bible?
Here's the answer:
Blood is important for the forgiveness of sins.
In the very beginning, the first two people God created disobeyed Him and brought sin into the world. Because God is perfect and can’t be around sin, sinners can’t have a close relationship with Him. But God created us for a relationship with Him, so He promised to send a Savior to fix our relationship and to give us life instead of death. But until that time, people would make sacrifices, or give God something precious, to cover their sin. The Bible says that blood represents life (see Leviticus 17:11). It also says, “In fact, the law requires that nearly everything be made “clean” with blood. Without the spilling of blood, no one can be forgiven” (Hebrews 9:22). So to make a sacrifice for sin, people had to take the life and spill the blood of an innocent creature, like a lamb.
Before Jesus’ death, people had to sacrifice animals over and over. The covering only lasted for a little while. But finally, after many years of this, Jesus came to Earth. He is perfect, because He is God, and so He would be the very best sacrifice for our sins. Jesus died on the cross for us, and spilled His blood so our sins could be covered for all time. He then defeated death by rising again three days later. Anyone who believes in Jesus and His sacrifice will be forgiven and given a place in God’s family, and will one day get to be in heaven with Jesus forever. Because of what Jesus did, we don’t have to offer sacrifices now!
"He [Jesus] isn’t like the other high priests. They need to offer sacrifices day after day. First they bring offerings for their own sins. Then they do it for the sins of the people. But Jesus gave one sacrifice for the sins of the people. He gave it once and for all time. He did it by offering himself" (Hebrews 7:27).
"You were set free from an empty way of life. This way of life was handed down to you by your own people of long ago. You know that you were not bought with things that can pass away, like silver or gold. Instead, you were bought with the priceless blood of Christ. He is a perfect lamb. He doesn’t have any flaws at all" (1 Peter 1:18–19).