Acts 2:33

Therefore being by[or at the right hand of God exalted i.e. into heaven. For not only are the Apostles and disciples witnesses of the Resurrection but also of the Ascension.

the promise of the Holy Ghost called the promise of the Fatherin Acts 1:4. Christ had told His disciples that the Father would send this gift upon them in answer to His prayer. "I will pray the Father and he shall give you another Comforter … he shall teach you all things" (John 14:16; John 14:26).

he hath shed forth Better, he hath poured forth. Thus the fulfilment of the prophecy is, as in the original, described by the same word which is put into the mouth of the prophet in Acts 2:17.

see and hear It would seem from this that the appearance, like as of fire, which rested upon each of them, remained visible for some time, thus making it apparent how different this was from any meteoric flashes into which some have endeavoured to explain away the miracle which St Luke describes.