NET
31 Do not turn to the spirits of the dead and do not seek familiar spirits to become unclean by them. I am the Lord your God.
Darby
31 Turn not unto necromancers and unto soothsayers; seek not after them to make yourselves unclean: I am Jehovah your God.
KJV
31 Regard not them that have familiar spirits, neither seek after wizards, to be defiled by them: I [am] the LORD your God.