Mark 16:14-18

14And afterward he was manifested unto the eleven themselves as they sat at meat; and he upbraided them with their unbelief and hardness of heart, because they believed not them that had seen him after he was risen. 15And he said unto them, Go ye into all the world, and preach the gospel to the whole creation. 16He that believeth and is baptized shall be saved; but he that disbelieveth shall be condemned. 17And these signs shall accompany them that believe: in my name shall they cast out demons; they shall speak with new tongues; 18they shall take up serpents, and if they drink any deadly thing, it shall in no wise hurt them; they shall lay hands on the sick, and they shall recover.