Luke 24:49
I am going to send you what my Father has promised; but stay in the city until you have been clothed with power from on high — I am going to send you what my Father has promised: the promise of the Spirit (Joel 2:28–29, Acts 2). Stay in the city until you have been clothed with power from on high (dynameos ex hypsous): the instruction to wait in Jerusalem for the Spirit's empowerment. The apostolic mission cannot begin without the Spirit's power.