To have blood on your hands often refers to being guilty. Blood is symbolic of life, necessary to keep a human being alive. However, sometimes an accident, mistake or minor transgression can end the life of an animal, human being or possession.
For your hands are stained with blood, your fingers with guilt. Your lips have spoken falsely, and your tongue mutters wicked things, Isaiah 59:3.
Another saying refers to being guilty as sin. In the Old Testament, the prophet Isaiah found the nation of Israel in denial. Instead of coming clean by repenting, justification took over. When caught red handed, most become defensive regardless of how guilty one may be.
To Jesus the mediator of a new covenant, and to the sprinkled blood that speaks a better word than the blood of Abel, Hebrews 12:24.
The author of Hebrews uses a unique connotation of blood. Abel was innocent and pure when jealousy caused his older brother to take his life. Yet, Jesus, who brought a new covenant introduces this concept. Instead of going to a great high priest to atone for your sins, Jesus died once and for all sins. Therefore. his blood speaks a better word, one of forgiveness, redemption and a promise of a new life without guilt or shame.
by Jay Mankus