Acts 22:15

ὅτι ἔσῃ μάρτυς αὐτῷ, for thou shalt be His witness. Thus the commission of the later-called Apostle was exactly in the same terms in which Christ (Acts 1:8) had spoken to the Eleven before his Ascension.

πρὸς πάντας�, unto all men. Paul, with his usual discretion, does not utter the word ‘Gentiles’ till he is forced to do so.

ὧν ἑώρακας καὶ ἤκουσας, of what thou hast seen and heard. For by revelation the Apostle was made aware of the whole scope of Christian truth, and of those doctrines which Christ during His life on earth had communicated to the Twelve. And at a later time (see 2 Corinthians 12:2-3) greater revelations appear to have been made to St Paul concerning the world to come than to any of the other Apostles.