Moltmann on the Difference Between Jesus and Paul

The preaching of Jesus, like that of Paul, is eschatological preaching; in the case of Jesus, the preaching of the kingdom of God; in the case of Paul, of the righteousness of God. The difference between them is not the superficial one of changed ideas, but is determined by their different theological situation. For Paul, that which for Jesus was the future is the present or the future of God inaugurated in the history of Jesus. The differences arose not from the further development of the teaching of Jesus, but from an apprehension of the changed situation of the essential substance itself. Jesus speaks and acts with respect to the dominion of God which is to come and is now coming into being. Paul speaks and acts with regard to the dominion of God which has already been inaugurated in the crucifixion and the resurrection of Jesus, and the righteousness of God which has already been revealed. (The Crucified God, pg. 120)