Final answer:
The early church's rejection of Marcion, who contrasted the Old and New Testaments, indeed affirms the Jewish roots of Christianity. This position is considered True as it signified the continuity and relevance of the Jewish scriptures in Christian theology.
Step-by-step explanation:
By rejecting Marcion, the early church was indeed affirming the Jewish roots of Christianity. This statement is True. Marcionism was a belief system that proposed a stark contrast and even rejection of the Old Testament, viewing the God represented there as inferior to the God of the New Testament. The rejection of Marcion by the early church established a continuity with the Jewish scriptures, affirming that Christianity had emerged from Judaism and that the teachings and prophecies of the Old Testament were valid and relevant to the Christian faith. The early Christian church rooted much of its theology in Jewish teachings and scriptures, and this was a significant aspect of its identity and doctrinal development. Many of Jesus's teachings, as referenced by early Christian philosophy, emphasized the spiritual equality of all human beings, which was inherited from Judaic principles.