The Creator. As it is the experience of most who, like myself, would style themselves thinkers, I find it takes a good long while for a thought to mature. A good idea is, in this sense, like a fruit: it takes time to ripen. For some time now I have entertained the idea that the sum total of divine revelation contained in an understanding of the world as created, and God as creator. Every other doctrine one might derive form the biblical texts, it would follow, is merely a derivate of this central thought. To deviate from it, it will follow from this, is to fall into what is classically known as heresy (as opposed to faithful confession), which might be translated in contemporary terms into heterodoxy (as opposed to orthodoxy).

This, from the preface to Irenaues' Against Heresies:

They overthrow the faith of many, by drawing them away, under a pretence of [superior] knowledge, from Him who founded and adorned the universe; as if, forsooth, they had something more excellent and sublime to reveal, than that God who created the heaven and the earth, and all things that are therein. (Pre.1)