One of the more prominent of these is an assault on the doctrine of the Trinity using the same sorts of arguments associated with various pseudo-Christian sects. A lesser but still serious aberration is an attempt to redefine the Trinity by keeping its essence but presenting it in a new form that the backers believe presents better the “Hebrew Roots” of the doctrine. Unfortunately, such restructuring is often done without consulting the original writings at the time of the Ecumenical Councils and thus it goes forward without a complete understanding of the issues and the implications of altering the original definitions.
It also never occurs to these folks that God in His sovereign will chose a time when the Mediterranean world was under the rule of one state (the Roman Empire) whose engineering feats had made quick travel over long distances possible through its vast network of roads, the highly expressive Greek language was the common tongue for learning, and Hellenistic culture had greatly influenced much of the known world since Alexander the Great.
The Greek language is highly suited for philosophical endeavors whereas Biblical Hebrew was relatively simple by comparison. I do not believe it was a coincidence that God chose a time when the infrastructure, language, and culture of an empire allowed an easy expansion of the faith, the widespread use of a language that allowed its forceful defense, and a rich culture that allowed it to be placed in the context of the fulfillment of all that is good within mankind.
Restricting the faith to some alleged “Hebrew Roots” that define a faith other than what ever existed removes two of the great strengths of the Christian faith – its universality and its historicity. However sincere its protagonists may be, they are describing an unrealized faith that they must assume Christ has never been able to fully realize until they came along.