The very "stumbling-block" which he declares Christ to be "to the Jews,"(16) points unmistakeably(17) to the Creator's prophecy respecting Him, when by Isaiah He says: "Behold I lay in Siona stone of stumbling and a rock of offence."(18) This rock or stone is Christ.(19) This stumbling-stone Marcion retains still.(20) Now, what is that "foolishness of God which is wiser than men," but the cross and death of Christ? What is that "weakness of God which is stronger than men,"(1) but the nativity and incarnation(2) of God?