I swear by the Creator of all things and the four Gospels
Here, the Creator refers to the Almighty God—or our Holy Father—according to the Christian religion. In this religion, there are the four Gospels: Mark, Matthew, Luke and John. While Matthew’s audience focused on the Jews and is portrayed as the MiG of the Jews, Mark’s “audience is basically those people in the Roman Empire who are unfamiliar with the religion of the Jews” (Blue Letter Bible); he starts his evangelistic duties at the beginning of Jesus’ ministry. The Gospel of Luke of the other hand preaches Jesus to be the perfect man; the Greek’s art and literature aimed to achieve this. Lastly, John was the eyewitness of Jesus.
Works Cited: https://www.blueletterbible.org/faq/don_stewart/don_stewart_188.cfm