As a result, there is no fundamental difference in theology, notably trinitarian theology, between the Roman Catholic Church and the Protestant churches. In the Catholic Church and the Protestant churches, the zealous commitment to church creed would raise its wary head whenever an effort is made in earnest, whether by Catholic or Protestant scholars, to evaluate doctrine solely on the basis of its fidelity to the Scriptures. In reality, the principle of sola Scriptura is an instrument employed by the churches to make the Scriptures conform to their dogma, including trinitarianism. Therefore, procedurally, they start with trinitarianism and not with Scripture. We will examine these efforts in the course of this study.