I see. Well, those Pharisees who were even more conversant with the OT than you are sure seemed to understand when they accused Jesus of doing the great works He did through a partnership with that aforementioned devil. You have a cite for that? Remember what Jesus said?
I note you ignored my questions and references to the mediums that the Church recognizes as Saints and the good that came of people seeking them out.
Apologies if I sounded hostile…I really wasn’t. I just believe that it’s important to be point-blank about this subject because the devil is “
like a roaring lion looking for someone to devour” (1 Peter 5:8), and no better way for the devil to achieve it’s aim than for one to indulge themselves in the spiritual realm. Would you play next to a lion’s den? The obvious answer would be no, and thus the same cautiousness should be taken with the spiritual realm.
Jesus performed miracles, and He was criticized by the Pharisees for gaining His abilities from the devil, namely, “
Beelzebub” (Luke 11:15). You are correct for that part. What you have forgotten however is that Jesus’ existence wasn’t really based on miracles in their own right, but from the fact that Scriptures prophecized about Him. Jesus never said, “I’m the Son of God, look at Me, I can perform miracles”. No. Jesus would often link His life to the fact that Scriptures foretold His coming, and used miracles as a way to further demonstrate that He was from God. So we know Jesus was the Son of God from a two-fold perspective: That the Old Testament by and large said He would come, and the fact He performed miracles for authenticity.
Jesus rarely foretold the future. He was not a medium nor did He come to Earth to be a medium. Indeed, Jesus even said that He did not know the date when the world would come to an end, but only His Father in Heaven did. Jesus humbled Himself with the abilities He had. A medium is much different. They want to predict virtually everything, and they do it for money. I think somewhere in the Bible it aptly regards mediums as “spiritual prostitutes”.
As for the saints, simply put, there were no “medium saints” nor will there ever be. I think you’re confusing prophesy (a gift from the Holy Spirit that allows one to see in the future) and a necromancy. It’s easy to make this mistake, and I can’t really blame you for making it. Because the distinction between prophesy and necromancy is very blurred, it’s why we as Catholics are told that we have to discern everything very carefully. That’s why the Church was hesitant and cautious towards Padre Pio whilst he was alive; he responded with simple obedience

. One can tell the future and be from God or the devil (although the devil can only see a blurred, warped version of the future). Most of the time however, it’s fake (you can look up a term called “cold reading” if you haven’t heard it before).
Thank you,
Eugen von Böhm-Bawerk