Sometimes Christians overemphasize the blood of Christ, as if it has some mystical properties. They tend to think that they must claim the blood of Christ to rid themselves of curses or even protection against the Evil One. Because of a sensitivity to this sort of nonsense, some Christians are afraid of the phrase. They think if they use the phrase, people will misunderstand and think they are lunatics. After all, does blood really cure anything? Are Christians some sort of pagan religion that thinks the slaughter of blood cures life's ailments?
There is a lot of misunderstanding about the blood of Christ these days. There are some who are so sensitive to this that they refuse to sing even some old hymns that talk about the blood of Christ (There is a Fountain and Nothing But the Blood). But if we are reading the Scriptures rightly, we have to acknowledge that Jesus did in fact die. He did in fact shed His blood. And the Bible does in fact talk about the blood of Christ. I was reading about this in Wayne Grudem's Systematic Theology the other day and came across a list that described the importance of the blood of Christ.
By the Blood of Christ . . .
Our consciences are cleansed
"...how much more will the blood of Christ, who through the eternal Spirit offered himself without blemish to God, purify our conscience from dead works to serve the living God." (Hebrews 9:14)
We gain bold access to God in worship and prayer
"Therefore, brothers, since we have confidence to enter the holy places by the blood of Jesus." (Hebrews 10:19)
We are progressively cleansed from remaining sin
"But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin." (1 John 1:7)
We are able to conquer the accuser of the brethren
"And I heard a loud voice in heaven, saying, 'Now the salvation and the power and the kingdom of our God and the authority of his Christ have come, for the accuser of our brothers has been thrown down, who accuses them day and night before our God. And they have conquered him by the blood of the Lamb and by the word of their testimony, for they loved not their lives even unto death." (Revelation 12:10-11)
We are rescued out of a sinful way of life
"Knowing that you were not ransomed from the futile ways inherited from your forefathers, not with perishable things such as silver or gold, but with the precious blood of Christ, like that of a lamb without blemish or spot." (1 Peter 1:18-19)