In this intriguing discussion, Dr. Michael J. Kruger, a New Testament scholar and author of The Question of Canon, delves into the early recognition of the biblical canon. He reveals that defining the canon is crucial for Christians and explains how both covenant theology and heretical challenges, like those from Marcion, influenced its formation. Kruger clarifies that the church recognized apostolic books, emphasizing the significant criteria of apostolicity. He also addresses why some texts, despite their value, were excluded from the canon, providing valuable insights into the historical context of scripture.