I never thought of Satan being present at the Last Supper, but John 13 says that Satan entered into Judas Iscariot there. (Luke says it was before, and both accounts could be true).
It is interesting that Jesus waited to say many things until after Judas, and presumably Satan also, left. Judas had had his feet washed by Jesus, and had heard that he was to do the same.
Satan was probably still possessing Judas in the garden of Gethsemane, when he kissed Jesus.
Jesus could have cast Satan out, but did not.
Dorothy Sayers at one point wrote an essay, I think it was: "The Dogma is the Drama".
A boomer apologizes, albeit without much clarity.
"It is not meet to take the children's bread, and to cast it to dogs," Jesus said; Matthew 15:26.
I recently understood that I am spending my life in rebuilding spiritual and practical foundations that had been foolishly undermined by previous generations.
Several months ago I was reading a nonfiction book by Christian author Paul Tournier, and made it about three-quarters of the way through before being drawn away to other things.
When I picked it up this last week and finished reading it, I found references to about a dozen Bible passages that had come up in my daily Bible readings in the interim, mostly obscure Old Testament personages with a variety of afflictions; Tournier was a Swiss doctor famous for connecting his Christianity with his medical practice.
I also read a Christian fiction book this last week: Deadline, by Randy Alcorn. One day, what I read in the book mirrored my morning Bible reading on that same day.
"A work of creation was three-fold, an earthly trinity to match the heavenly; the Creative Idea, timeless and passionate, which is the image of the Father; the Creative Energy, begotten of the idea and working in time, which is the image of the Word; the Creative Power, the meaning of the work and its response in the individual soul, which is the image of the indwelling Spirit."
-- P. D. James, summarizing Dorothy L. Sayers' description