Deuteronomy 18:10 There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch. 11 Or a charmer, or a consulter with familiar spirits, or a wizard, or a necromancer.
[Patriarchs & Prophets pp 683] The Scripture account of Saul's visit to the woman of Endor has been a source of perplexity to many students of the Bible. There are some who take the position that Samuel was actually present at the interview with Saul, but the Bible itself furnishes sufficient ground for a contrary conclusion. If, as claimed by some, Samuel was in heaven, he must have been summoned thence, either by the power of God or by that of Satan.
None can believe for a moment that Satan had power to call the holy prophet of God from heaven to honor the incantations of an abandoned woman. Nor can we conclude that God summoned him to the witch's cave; for the Lord had already refused to communicate with Saul, by dreams, by Urim, or by prophets. 1 Samuel 28:6. These were God's own appointed mediums of communication, and He did not pass them by to deliver the message through the agent of Satan.
The message itself is sufficient evidence of its origin. Its object was not to lead Saul to repentance, but to urge him on to ruin; and this is not the work of God, but of Satan. Furthermore, the act of Saul in consulting a sorceress is cited in Scripture as one reason why he was rejected by God and abandoned to destruction.
Isaiah 8:19 And when they shall say unto you, Seek unto them that have familiar spirits, and unto wizards that peep, and that mutter: should not a people seek unto their God? for the living to the dead? 20 To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
May The Lord add His blessing to the study of His word. God bless!