In this episode, we begin to analyze the second part of Marcus Grodi's evidence from the early church fathers that led to his conversion to Roman Catholicism: the Eucharist. We cover the origin of the Eucharist and the origin of the term "Sacrifice of the Mass" and begin to show from the early church that the Eucharist was the tithe offering for 300 years, until the end of the 4th century when the Roman Catholic Sacrifice of the Mass was born.