Later he appeared to the eleven themselves as they were sitting at the table; and he upbraided them for their lack of faith and stubbornness, because they had not believed those who saw him after he had risen. And he said to them, “Go into all the world and proclaim the good news to the whole creation. The one who believes and is baptized will be saved; but the one who does not believe will be condemned.”
Mark 16:114-16 New Revised Standard Version (NRSV)
“Do not leave Jerusalem, but wait for the gift my Father promised, which you have heard me speak about. For John baptized with water, but in a few days you will be baptized with the Holy Spirit.”
Acts 1:4b-5 New International Version (NIV)
“He said to them: “It is not for you to know the times or dates the Father has set by his own authority. But you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.” After he said this, he was taken up before their very eyes, and a cloud hid him from their sight.
Acts 1:7-9 (NIV)
When the day of Pentecost had come, they were all together in one place. And suddenly from heaven there came a sound like the rush of a violent wind, and it filled the entire house where they were sitting. Divided tongues, as of fire, appeared among them, and a tongue rested on each of them. All of them were filled with the Holy Spirit and began to speak in other languages, as the Spirit gave them ability. Now there were devout Jews from every nation under heaven living in Jerusalem. And at this sound the crowd gathered and was bewildered, because each one heard them speaking in the native language of each. Amazed and astonished, they asked, “Are not all these who are speaking Galileans? And how is it that we hear, each of us, in our own language? Parthians, Medes, Elamites, and residents of Mesopotamia, Judea and Cappadocia, Pontus and Asia, Phrygia and Pamphylia, Egypt and the parts of Libya belonging to Cyrene, and visitors from Rome, both Jews and proselytes, Cretans and Arabs — in our own languages we hear them speaking about God’s deeds of power.” All were amazed and perplexed, saying to one another, “What does this mean?” But others sneered and said, “They are filled with new wine.”
Acts 2:1-13 (NRSV)
But Peter, standing with the eleven, raised his voice and addressed them, “Men of Judea and all who live in Jerusalem, let this be known to you, and listen to what I say. Indeed, these are not drunk, as you suppose, for it is only nine o’clock in the morning.”
Acts 2:14-15 (NRSV)
“Therefore let all Israel be assured of this:
God has made this Jesus, whom you crucified,
both Lord and Messiah.”
Acts 2:36 (NIV)
Peter replied, “Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit. The promise is for you and your children and for all who are far off — for all whom the Lord our God will call.” With many other words he warned them; and he pleaded with them, “Save yourselves from this corrupt generation.” Those whom accepted his message were baptized, and about three thousand were added to their number daily.
Acts 2:38-41 (NIV)