A believer can handle snakes or drink poison and not experience any harm.
(Note: Many unfortunate believers have died as a result of handling snakes and drinking poison. This kind of assertion negates the Bible as a useful guidebook for life.)
17And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues;
18They shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover.