BEN: I agree that the first fully Trinitarian text in the Gospels (by chronological time since Mark comes before Matthew and Luke) is Mark 1—the baptism of Jesus story. The Isaianic background to the rent heavens is important. I take it that Mark is using apocalyptic language, and that we are being told Jesus had visions. Matthew makes this more of a public event, but Mark is quite clear this was a revelation to and empowerment of Jesus personally here.... Read more