As he walked along, he saw Levi son of Alphaeus sitting at the tax collector’s booth. “Follow me,” Jesus told him, and Levi got up and followed him. (Mark 2:14)
It seems reasonable to suggest that all the teachings of the Hebrew Bible (Tanak) were stored in Levi’s brain for years before he betrayed his faith and his countrymen to work for the hated Romans. In his gospel, he presents Jesus as the King. Was this the first time Levi realized he was the King’s servant?