John pointed to Jesus and said"Behold the Lamb of God who takes away the sin of the world."(John 1:29) In this verse John acknowledges Jesus as the ultimate sacrifice for the sins of all people.
In the Old Testament the priest laid his hands on a lamb brought by the people and symbolicly transfered the sins of the people of Israel on to this lamb. which was then set free in the wilderness. However, this ritual had to be done repeatedly. But Jesus paid the price once and for all when He took our sins upon Himself to Calvary. He has paid for our sins and this is a one time sacrifice.
