Acts 1:4-5, 8

The Holy Spirit Promised

4And being assembled together with them, He commanded them not to depart from Jerusalem, but to wait for the Promise of the Father, “which,” He said, “you have heard from Me; 5for John truly baptized with water, but you shall be baptized with the Holy Spirit not many days from now.”

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8But you shall receive power when the Holy Spirit has come upon you; and you shall be witnesses to Me in Jerusalem, and in all Judea and Samaria, and to the end of the earth.”