Once again, this just comes from me reading the Gospels and thinking a bit about them, and reading a bit from things like the Anchor Bible Dictionary. Finally, some of you may know I’m very interested in preaching. The Bible is fertile ground for thinking about that, and that’s one thing I do know a bit about.
Mark doesn’t say much about the temptations, he just says, Jesus was tempted by the devil. Luke and Matthew repeat a tradition about three temptations, and Jesus answers them by quoting from Deuteronomy(!). Luke, who seems driven by logic in his presentation, rather than some sort of strictly historic narrative, puts this story at the beginning, perhaps because he is more interested in the Church, writing as he does from a later perspective.