Mark 16:17

16:17 These signs will accompany those who believe: In my name they will drive out demons; they will speak in new languages;

Acts 2:6-12

2:6 When this sound occurred, a crowd gathered and was in confusion, because each one heard them speaking in his own language. 2:7 Completely baffled, they said, “Aren’t all these who are speaking Galileans? 2:8 And how is it that each one of us hears them in our own native language? 2:9 Parthians, Medes, Elamites, and residents of Mesopotamia, Judea and Cappadocia, Pontus and the province of Asia, 2:10 Phrygia and Pamphylia, Egypt and the parts of Libya near Cyrene, and visitors from Rome, 2:11 both Jews and proselytes, Cretans and Arabs – we hear them speaking in our own languages about the great deeds God has done!” 2:12 All were astounded and greatly confused, saying to one another, “What does this mean?”

Acts 2:32-36

2:32 This Jesus God raised up, and we are all witnesses of it. 2:33 So then, exalted to the right hand of God, and having received the promise of the Holy Spirit from the Father, he has poured out what you both see and hear. 2:34 For David did not ascend into heaven, but he himself says,

‘The Lord said to my lord,

“Sit at my right hand

2:35 until I make your enemies a footstool for your feet.”’

2:36 Therefore let all the house of Israel know beyond a doubt that God has made this Jesus whom you crucified both Lord and Christ.”