Acts 1:3-5

3 to whom He presented Himself alive after His passion by many infallible proofs, appearing to them for forty days, and speaking concerning the kingdom of God.

4 Being assembled with them, He commanded them, “Do not depart from Jerusalem, but wait for the promise of the Father, of which you have heard from Me.

5 For John baptized with water, but you shall be baptized with the Holy Spirit not many days from now.”