they will take up serpents; and if they drink anything deadly, it will by no means hurt them; they will lay hands on the sick, and they will recover."
Mark 16:18
Surrounding context
16:17 And these signs will follow those who believe: In My name they will cast out demons; they will speak with new tongues;
16:18 they will take up serpents; and if they drink anything deadly, it will by no means hurt them; they will lay hands on the sick, and they will recover."
16:19 So then, after the Lord had spoken to them, He was received up into heaven, and sat down at the right hand of God.