Patristics
Main article: Antisemitism in patristicsIn the 2nd century, theologians and church fathers became more concerned with "making the break" with anything Jewish, beginning to take an uncompromising posture of theological and political opposition. Blanket policies condemning Jews began to color New Testament interpretation.
Most significantly, Marcion rejected the Hebrew Bible in its entirety, but his position was declared heretical by the proto-orthodox.
Read more about this topic: Antisemitism In Early Christianity