Mark 16:14-20 - Jesus Talks To The Apostles
14 Later on, he made himself known to the Eleven themselves as they were at a meal, and reproached them with their want of faith and their stubbornness, because they did not believe those who had seen him after he had risen from the dead. 15 Then he said to them: "Go into all the world, and proclaim the Good News to all creation. 16 He who believes and is baptized shall be saved; but he who refuses to believe will be condemned. 17 Moreover these signs shall attend those who believe. In my Name they shall drive out demons; they shall speak with 'tongues'; 18 They shall take up serpents in their hands; and, if they drink any poison, it shall not hurt them; they will place their hands on sick people and they shall recover."
19 So the Lord Jesus, after he had spoken to them, was taken up into Heaven, and sat at the right hand of God. 20 But they set out, and made the proclamation everywhere, the Lord working with them, and confirming the Message by the signs which attended it.