"The Latins' weakness to comprehend and failure to express the dogma of the Trinity shows the non-existence of empirical theology.

In The Triune God: Doctrines, Lonergan begins with an examination of the dialectical process by which the dogma of the Trinity developed in the first four centuries.

His student Ibn Qayyim Al-Jawziyya wrote the famous poem "O Christ-Worshipper" which examined the dogma of the Trinity propounded by many Christian sects.

This had then led to the classical dogmas of the Trinity and the incarnation, which Harnack described in his great History of Dogma as 'the fruit of the Greek spirit on the ground of the gospel', the product of the 'hellenisation of Christianity'.