From the beginning, God has dealt with sin through the shedding of blood. When mankind’s first act of disobedience was committed, the Lord Himself instituted the sacrificial system: He killed an animal and used its skin to cover Adam and Eve physically, just as its blood “covered” their sin. This was a temporary solution, however. Only the shed blood of Jesus Christ could atone for sin and permanently do away with it.
The Son of God came as the sin-bearer for the whole world— He lived a perfect life and then assumed full responsibility for all of our transgressions and guilt. Through His death on the cross, those who trust Him as Savior enjoy the freedom of full pardon and are made righteous and holy in the eyes of the Father.
This is why we call Jesus the Lamb of God. In the Old Testament, lambs were sacrificed to atone for sin. In a similar way, Jesus offered His life as the substitutionary death needed to satisfy God’s justice. As a result, our relationship with God was reconciled so we could be adopted us as His children. Because of Jesus we can stand before God and say, “Thank You for being my Father.”
Bible in One Year: 1 Samuel 21-22