Acts 1:2; Acts 1:8

Acts 1:2

2 Till the day when he was taken up to heaven after he had given his orders, through the Holy Spirit, to the Apostles of whom he had made selection:

Acts 1:8

8 But you will have power, when the Holy Spirit has come on you; and you will be my witnesses in Jerusalem and all Judaea and Samaria, and to the ends of the earth.