Acts 1:2; Acts 1:8

Acts 1:2

2 until the day he was taken up, [after he] had given orders through the Holy Spirit to the apostles whom he had chosen,

Acts 1:8

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 part of the earth."