You are correct that demons are real and they do tempt us to follow their master (Satan) and to do sins against God. Where I think you have gone wrong is your view that the Bible contains information on everything that is. It just may contain everything at the coded (bible code) level. But it doesn't on the surface level. Much can be gained by balancing both the Bible and apostolic tradition. Or what the apostles said and did.
Everyone needs to get one thing straight. Satan is real. And demons are real. Jesus said so! Christians need to stay far away from the occult, mediums, witches, Ouija boards wizards and those who would have you believe that they are speaking to the dead. People who are involved with the occult are in grave danger of losing the kingdom of Heaven.
Jesus gave all his apostles, their deacons, and everyone who truly believes in Him the power to dispel demons. It is significant in Scripture that the 72 disciples returned to Jesus to sum up the results of their ministry, after Jesus sent them out in pairs to teach - these disciples mentioned one thing only when they returned to Jesus. They said to Jesus; "Lord, even the demons are subject to us in your name!" In Mark 9, we read that John told Jesus; "We saw a man casting out demons in your name, and we forbade him because he was not following us". The Lord rebuked the apostles. Remember also, the Apostle Paul calls attention to the fact that the very air is filled with evil spirits.
And Jesus dispelled demons himself; and Jesus testified in Luke 10: "I saw Satan fall like lightning from heaven" (as he was cast out to abide on the earth). The world was made for Jesus. And Jesus cleansed the world and defeated Satan at Calvary. However, Satan remains the "Prince of this World", until the time the Lord sees fit. Fighting against evil is one way we are tried to be found deserving. Can we forget Jesus casting demons into a herd of the swine who immediately ran off a cliff?
Remember the story of the Witch of Endor in the Bible? Saul had this witch conjure up the spirit of the Prophet Samuel. When Saul asked the witch what she saw, she said she saw; "gods ascending out of the earth", and also that she saw an old man with a mantle.. Gods coming from out of the earth? Makes one wonder - doesn't it?
I Samuel (interpreted by us): This conjured up entity who Saul perceived was Samuel was apparently angry at being disturbed. This entity told Saul that tomorrow both he and his sons would "be with me" (die). Subsequently, the Philistines slew Saul's 3 sons during battle. Wounded by archers, Saul "fell down on his own sword" (took his own life) after his armor-bearer refused Saul's order for him to slay him. Even though Saul was then estranged from the Lord, we are sure that Saul would have been better off trusting in God only. We are left to wonder whether if Saul (and perhaps his sons also) would not have lived after the battle - and if he would have had time to make amends to the Lord - if he would have never visited this witch....
As to Ghosts. Samuel was either a Ghost or a deceiving spirit! I personally weigh in on the odds that their are deceiving spirits everywhere.
The Witch of Endor story also says to us that ghosts/spirits (or deceiving entities) can be contacted. But the Bible tells us that we should not try to do this, via mediums or any other means. Quite a bit of evidence in addition to Scripture suggests that there is another "dimension" beyond our own. All of it may not be good, however.
Remember that Satan is actually an extremely powerful fallen angel, with all the powers of an archangel. Satan was once entrusten with guarding God and His throne on the holy mountain. Satan took with him numerous angels when he rebelled against God - so that there are actually good "powers and principalities" on the side of God in Heaven, and evil "powers and principalities" on the side of Satan (the Prince of this world).
Related
Read BEGONE SATAN! A Sensational Expulsion of the Devil which occurred in Iowa in 1928 (a great many of witnesses were present): http://bibleprobe.com/1928exorcism.htm
http://www.bibleprobe.com/ghostpictures.htm |