Kababe/Mya88,
There are numerous circumstances where the Bible records people swindling, betraying and backstabbing each other thinking completely different things from the reality. In Joshua 9, for example, Israel made peace with the Gibeonites and the Bible records that the people came from far and had moulded bread. The reality was different. In another case, Amnon David's son was sick but his intention was to rape his sister.
2 Sam 13.
2 And Amnon was so vexed, that he fell sick for his sister Tamar; for she was a virgin; and Amnon thought it hard for him to do anything to her.
3 But Amnon had a friend, whose name was Jonadab, the son of Shimeah David's brother: and Jonadab was a very subtil man.
That is why reading in context is crucial in understanding text, any text. Vooke has repeatedly rejected contextual reading. Any verse that is hard to understand can be unlocked by reading contextually comparing the verse with the verses before it, understanding the historical context, the writer's background, the chapter, book and indeed the whole Bible. That is context.
The devil has spoken truth (half-truth to be precise) and out of context. He used that to beguile Adam and Eve and attempted to use it on Christ (Matthew 4, Luke 4). Jesus warns believers to beware of the devil's cunning (Matt 24:24) which will include imitating Christ Himself. John warns us of the same thing, that the devil will in these last days even command fire out of heaven.
Rev 13
12 And he exerciseth all the power of the first beast before him, and causeth the earth and them which dwell therein to worship the first beast, whose deadly wound was healed.
13 And he doeth great wonders, so that he maketh fire come down from heaven on the earth in the sight of men,
14 And deceiveth them that dwell on the earth by the means of those miracles which he had power to do in the sight of the beast; saying to them that dwell on the earth, that they should make an image to the beast, which had the wound by a sword, and did live.
If Satan could disguise himself into a snake in Eden, is it too hard for him to disguise himself as Samuel and cheat the king of Israel? That website tackles the questions you ask, very biblically. See:
Communication with the Spirit World
Can the dead communicate with the living?
Answer: No (Ecclesiastes 3:22; 9:5-6, Job 7:9-10; 14:21; 16:22, 2 Samuel 12:18,23).
Where does the communication come from?
Answer: The adversary (2 Thessalonians 2:9, 1 Timothy 4:1, Revelation 16:14, 2 Corinthians 11:13-15). In Genesis 3:1 is recorded the adversary's first communications with humans. This is the record of the first Spirit Medium, speaking through the snake or serpent in the garden of Eden. In Genesis 3:3 is recorded the serpent's first lie to man, "Ye shall not surely die." His goal to perpetuate this lie has been a great success (2 Corinthians 11:3).
What does the scripture say about spiritualism?
Answer: It's an abomination to God (Exodus 22:18, Leviticus 19:26,31; 20:6,27, Deuteronomy 18:10-12, Numbers 24:1, Malachi 3:5, Galatians 5:21, Matthew 24:24, Jeremiah 27:9-10, Micah 5:12, 2 Kings 17:17; 21:6; 23:24, Daniel 1:20, 1 Samuel 15:23; 28:3, 2 Chronicles 33:6, Isaiah 2:6; 47:12-15, Acts 8:9-11; 13:8-10; 16:16-18; 19:19, Revelation 21:8; 22:14-15). Saul died because of his transgressions against the Lord and because he asked counsel of the spiritualist at Endor (1 Chronicles 10:13). Notice in the story of Saul trying to contact the late Samuel (1 Samuel 28:6-17), it always refers to Samuel as being brought up. If Samuel was up in Heaven, wouldn't it say, Samuel came down?