Leviticus 19:31

Regard not them that have familiar spirits, neither seek after wizards, to be defiled by them: I am the LORD your God.

Regard not them that have familiar spirits, х haa'obot (H178); Septuagint, engastrimuthous] - ventriloquists (Leviticus 20:7; Deuteronomy 18:11; 1 Samuel 28:3; 1 Samuel 28:7): The witch of Endor is called "mistress of ob" (2 Kings 21:6; 2 Chronicles 33:6; Isaiah 8:19; Isaiah 29:3). The Hebrew word rendered "familiar spirit," signifies the belly, and sometimes a leather "bottle", from its similarity to the belly. It was applied in the sense of this passage to ventriloquists, who pretended to have communication with the invisible world; and the Hebrews were strictly forbidden to consult them; as the vain but high pretensions of those impostors were derogatory to the honour of God, and subversive of their covenant relations with him as His people.

Neither seek after wizards, х hayid`oniym (H3049)] - the knowing, wizards - i:e., wise men, magi. The Septuagint has: epaoidois, enchanters, sorcerers: but being commonly associated with those who had 'owb (H178), it is probable that they were necromancers.