Acts 22:15

For you will be a witness for him to all men of what you have seen and heard.

Acts 23:11

The following night, the Lord stood by him, and said, "Cheer up, Paul, for as you have testified about me at Jerusalem, so you must testify also at Rome."

Acts 4:20

for we can't help telling the things which we saw and heard."

Luke 24:47-48

and that repentance and remission of sins should be preached in his name to all the nations, beginning at Jerusalem.

John 15:27

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

Acts 1:8

But you will receive power when the Holy Spirit has come upon you. You will be witnesses to me in Jerusalem, in all Judea and Samaria, and to the uttermost parts of the earth."

Acts 1:22

beginning from the baptism of John, to the day that he was received up from us, of these one must become a witness with us of his resurrection."

Acts 10:39-41

We are witnesses of everything he did both in the country of the Jews, and in Jerusalem; whom they also killed, hanging him on a tree.

Acts 22:14

He said, 'The God of our fathers has appointed you to know his will, and to see the Righteous One, and to hear a voice from his mouth.

Acts 26:16-18

But arise, and stand on your feet, for I have appeared to you for this purpose: to appoint you a servant and a witness both of the things which you have seen, and of the things which I will reveal to you;

Acts 26:20

but declared first to them of Damascus, at Jerusalem, and throughout all the country of Judea, and also to the Gentiles, that they should repent and turn to God, doing works worthy of repentance.

Acts 27:24

saying, 'Don't be afraid, Paul. You must stand before Caesar. Behold, God has granted you all those who sail with you.'

Treasury of Scripture Knowledge

Summary

For thou shalt be his witness unto all men of what thou hast seen and heard.

General references

Bible References

Thou shalt

Acts 1:8
But you will receive power when the Holy Spirit has come upon you. You will be witnesses to me in Jerusalem, in all Judea and Samaria, and to the uttermost parts of the earth."
Acts 10:39
We are witnesses of everything he did both in the country of the Jews, and in Jerusalem; whom they also killed, hanging him on a tree.
Acts 23:11
The following night, the Lord stood by him, and said, "Cheer up, Paul, for as you have testified about me at Jerusalem, so you must testify also at Rome."
Acts 26:16
But arise, and stand on your feet, for I have appeared to you for this purpose: to appoint you a servant and a witness both of the things which you have seen, and of the things which I will reveal to you;
Acts 27:24
saying, 'Don't be afraid, Paul. You must stand before Caesar. Behold, God has granted you all those who sail with you.'
Luke 24:47
and that repentance and remission of sins should be preached in his name to all the nations, beginning at Jerusalem.
John 15:27
You will also testify, because you have been with me from the beginning.

Of

Acts 4:20
for we can't help telling the things which we saw and heard."
Acts 26:20
but declared first to them of Damascus, at Jerusalem, and throughout all the country of Judea, and also to the Gentiles, that they should repent and turn to God, doing works worthy of repentance.

General references

Luke 24:48
You are witnesses of these things.