One teaching that has its roots in not only the OT and Jewish thought, but the NT testament as well and clearly expressed by ECF, is the notion of the free will of man. The notions of original sin as taught by Augustine, denied that fundamental doctrine of the Church and supported by Scripture. There was no induction into the Church by pagan thought any notion of the free will of man. It had existed as excepted truth from the foundations and development of spiritual matters, as clearly attested to in OT writings and Jewish beliefs. Yet, this clearly well established notion was jettisoned by Augustine in his insistence that his notion of original sin be made mandatory dogma Church wide. His denial of the freedom of the will was absolutely and pivotally based upon the denial of free will. It was the driving factor in establishing Augustinian original sin, which induces inherited guilt. It is also interesting to see why it was he felt the teachings, he once clearly supported of the free will of man, needed to be discarded for the belief of the bondage of the will, as continued in the writings of Luther, Calvin, and others. It was not via the study of Scripture or the study of the ECF, but rather he looked introspectively at his own life as a pagan, and his seeming inability to will in any other direction than to follow the impulses of his flesh in fornication. Couple that with the clearly pagan notion that sin lied in the constitution of the flesh and not in the will, and Walla, we have a novel doctrine of original sin being introduced into the Church in direct opposition to over several thousand years of strongly held beliefs within the OT and Jewish religion as well as the NT Church and beyond, that man possessed a free will. It was this departure of belief in a free will, in direct opposition to the long standing belief in the free will of man, that opened the door to the novel doctrine of original sin Augustinian style. Try and find ECF who denied the free will of man besides Augustine. Even Augustine himself not only believed in the free will of man, but wrote no less than three volumes in support of it after being taught by Ambrose. He then turned from the teaching of the Church and his teacher Ambrose, and changed his mind in personal reflection, denying the clear teachings of the Church when he introduced the notion of original sin sans the free will of man. Of a truth, no notion of original sin can be understood without proper reflection into the Scriptural notion and long held beliefs prior to Augustine, of the free will of man.