There is one solitary instance in Scripture in which God permitted one departed to revisit the earth for a specific purpose. This exception proves conclusively the rule; being an only exception, the proof of the rule is most complete.
King Saul, after a long course of evil, was in sore straits. The Philistines were threatening him, and in his dilemma he inquired of the Lord, but He did not answer him, "neither by dreams, nor by Urim nor by prophets." Though he had purged the land of those who had familiar spirits, he now sought such aid. Disguised, with two companions, Saul asked the witch of Endor to bring up Samuel. God then intervened. He restrained the personating demon from appearing at the medium's behest, and allowed the spirit of Samuel to appear. The medium was astonished beyond measure. When the woman saw Samuel, she cried with a loud voice," charging Saul with deception, that having threatened with death all those with familiar spirits, and destroying all he could find, he had sought her aid.
This is the only case on record in the Scriptures where one departed has been permitted to revisit the earth for a specific purpose, whereas Spiritualism claims that there is continual intercourse between living persons and departed spirits.
And note, Samuel did not come at the call of the medium of Endor. God will not allow the spirits of the departed to be at the beck and call of any medium, who may be, and often is, of questionable character.
" So Saul died for his transgressions which he committed against the Lord, even against the word of the Lord, which he kept not, and also for asking counsel of one that had a familiar spirit, to inquire of it; and inquired not of the Lord: Therefore He slew him, and turned the kingdom unto David the son of Jesse" (1 Chron. 10:13, 1413So Saul died for his transgression which he committed against the Lord, even against the word of the Lord, which he kept not, and also for asking counsel of one that had a familiar spirit, to inquire of it; 14And inquired not of the Lord: therefore he slew him, and turned the kingdom unto David the son of Jesse. (1 Chronicles 10:13‑14).).