Acts 1:8

1:8 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 parts of the earth.”

Acts 10:41

10:41 not by all the people, but by us, the witnesses God had already chosen, who ate and drank with him after he rose from the dead.

Acts 22:20

22:20 And when the blood of your witness Stephen was shed, I myself was standing nearby, approving, and guarding the cloaks of those who were killing him.’

Acts 26:16

26:16 But get up and stand on your feet, for I have appeared to you for this reason, to designate you in advance as a servant and witness to the things you have seen and to the things in which I will appear to you.