Paul's thought forms a unity of a very peculiar kind. It certainly has a single focus: Christ, but this fact is not in itself sufficient to bring the many disparate elements in his thought together to form the unity that it manifestly has. Nor is that unity that of a system. The search for a Pauline ‘system’ of beliefs (δόγματα) with clearly defined relations between them is in vain – and even more so is the attempt to find a single formula supposed to express the whole of his thought. The immense diversity of his thinking should never be forgotten.