The historical Jesus is fundamental to Paul's theology. The disciple who wrote Ephesians caught the Apostle's approach perfectly when he presents Jesus as the truth of Christ (Eph. 4: 21). When his converts attempted to separate the Christ of faith from the Jesus of history, Paul resisted by insisting that the Lord of Glory was the crucified Jesus (2 Cor. 2: 6), and by stressing that Christ had been recieved 'as Jesus the Lord' (Col. 2: 6). The implication tha tPaul had preached the historical Jesus is formally confirmed by his condemnation of anyone 'who preaches a Jesus other than the one we preached' (2 Cor. 11: 4).
Paul: A Critical Life, 91.
We can all pray that Jerome has a quick recovery from his very serious illness.