Acts 1:2-5

2until that day in which, having by the Holy Spirit charged the apostles whom he had chosen, he was taken up;

3to whom also he presented himself living, after he had suffered, with many proofs; being seen by them during forty days, and speaking of the things which concern the kingdom of 1God;

4and, being assembled with [them], commanded them not to depart from Jerusalem, but to await the promise of the Father, which [said he] ye have heard of me.

5For John indeed baptised with water, but ye shall be baptised with the Holy Spirit after now not many days.