Mark 16: 15 - 20
15 And he said to them, "Go into all the world and preach the gospel to the whole creation.
16 He who believes and is baptized will be saved; but he who does not believe will be condemned.
17 And these signs will accompany those who believe: in my name they will cast out demons; they will speak in new tongues;
18 they will pick up serpents, and if they drink any deadly thing, it will not hurt them; they will lay their hands on the sick, and they will recover."
19 So then the Lord Jesus, after he had spoken to them, was taken up into heaven, and sat down at the right hand of God.
20 And they went forth and preached everywhere, while the Lord worked with them and confirmed the message by the signs that attended it. Amen.

EWTN