But you will receive power [when] the Holy Spirit has come upon you, and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the farthest part of the earth."

This Jesus God raised up, of which we all are witnesses.

And we [are] witnesses of all [the things] that he did both in the land of the Judeans and in Jerusalem, whom they also executed [by] hanging [him] on a tree.

who appeared for many days to those who had come up with him from Galilee to Jerusalem--who are now his witnesses to the people.

and repentance and the forgiveness of sins would be proclaimed in his name to all the nations, beginning from Jerusalem.

And you also will testify, because you have been with me from the beginning.

This [is] the third [time] I am coming to you. {By the testimony} of two or three witnesses every word will be established.

how will we escape [if we] neglect so great a salvation which had [its] beginning [when it] was spoken through the Lord [and] was confirmed to us by those who heard,

And so

"When the Advocate comes, whom I will send to you from the Father--the Spirit of truth, who proceeds from the Father--that one will testify about me.

But I tell you the truth, it is better for you that I go away. For if I do not go away, the Advocate will not come to you; but if I go, I will send him to you.

[while] God was testifying at the same time by signs and wonders and various miracles and distributions of the Holy Spirit according to his will.

to whom it was revealed that they were serving not themselves but you with reference to the same [things] which now have been announced to you through those who proclaimed the gospel to you by the Holy Spirit sent from heaven, {things into which} angels desire to look.

Whom

And they were all filled with the Holy Spirit and began to speak in other languages as the Spirit gave them [ability] to speak out.

[While] Peter was still speaking these words, the Holy Spirit fell on all those who were listening to the message.

Now he said this concerning the Spirit, whom those who believed in him were about to receive. For the Spirit was not yet [given], because Jesus had not yet been glorified.)

General references

But when they bring you before the synagogues and the rulers and the authorities, do not be anxious how or what you should speak in your own defense or what you should say,

You are witnesses of these [things].