The next day John saw Jesus coming unto him, and said, Behold the Lamb of God, who takes away the sin of the world.
All Commentaries on John 1:29 Go To John 1
Clement Of Rome
AD 99
And the fat and unctuous food,-the delicacies abundant and sufficing of the blessed,-the fatted calf is killed; which is also again spoken of as a lamb (not literally); that no one may suppose it small; but it is the great and greatest. For not small is "the Lamb of God who taketh away the sin of the world"