Acts 1:4-8

And when they came together, he gave them this order: “Do not leave Jerusalem, but wait for the gift I told you about, the gift my Father promised. John baptized with water, but in a few days you will be baptized with the Holy Spirit.” When the apostles met together with Jesus, they asked him, “Lord, will you at this time give the Kingdom back to Israel?” Jesus said to them, “The times and occasions are set by my Father's own authority, and it is not for you to know when they will be. But when the Holy Spirit comes upon you, you will be filled with power, and you will be witnesses for me in Jerusalem, in all Judea and Samaria, and to the ends of the earth.”