John 1:29

The Lamb of God] The reference is perhaps not to the Paschal lamb, but to the Suffering Servant of Isaiah 53, who is 'brought as a lamb to the slaughter,' and whose death atones for sin. Contrast this description of the Messiah with the prevalent idea of a conqueror who would restore the kingdom to Israel. The Jews generally regarded the Messiah not as 'the Lamb of God,' but as 'the Lion of the tribe of Judah.' The sin of the world] The idea of atonement for the sins of Israel is found in Isaiah 53 : the further idea that the Messiah will atone for the sins of the world, follows naturally from the numerous utterances of the OT. prophets which speak of the participation of the Gentiles in the Messianic kingdom (Psalms 87, etc.).