This work intends to analyze the discoursive procedures concerning the relationship between myth and philosophy in the ecclesiastical thought on the Judaic condition in the Early Middle Ages. Some semantic issues and the coverage of the mythical thought on the so-called post-nicaean philosophic approach will be debated, showing the considerable proximities between the two areas of human existence. Throughout the new meanings of literary practices established during the IVth and the Vth centuries, the polemical writings Adversus Iudaeos reveal that from then on myth and philosophy make up the identity universe built by the most known church fathers, which can be identified throughout conceptions regarding either the Divinity, the History or the being. Those written pieces, performed by a wide range narrative profiles - treatises, epistles, sermons and stories - appeared significantly in the construction and massive crystallization of mythological dehumanized images of Jews and Judaism.