Is Jesus Christ God? Is he a person? Is he each? Spoiler alert: the mainstream Church answered with the each/and, however the factions on the fringes tended to decide on one or the opposite. For our first heresy, we check out the Ebionites, and their New Testomony-era predecessors, the so-called Judaizers. These concluded that Jesus Christ was a mere human. A human who grew to become a prophet maybe, however only a human.
That is season 4, episode 2 of Means of the Fathers. Subscribe to the podcast right here: https://www.catholicculture.org/commentary/class/way-fathers/