Jn 1:29 "Behold - the lamb of God, which takes away the sin of the world" has little meaning for people today, but for the Israelites who applied the blood of the Passover lamb on the doorposts (Ex.12) it was tremendously significant. When the destroyer saw the blood, they were protected, and 430 years of slavery finished. Jesus is God's provision for our sinfulness, and His blood still speaks. Get a fresh revelation of the power of the blood of Jesus for your freedom.