Deuteronomy 18:10-13

There shall not be found among you anyone who makes his son or daughter pass through the fire [as a sacrifice], one who uses divination and fortune-telling, one who practices witchcraft, or one who interprets omens, or a sorcerer, or one who casts a charm or spell, or a medium, or a spiritist, or a necromancer [who seeks the dead]. For everyone who does these things is utterly repulsive to the LORD; and because of these detestable practices the LORD your God is driving them out before you. You shall be blameless (complete, perfect) before the LORD your God.