John Chrysostom
"Now Cornelius was waiting for them, having called together his relatives and close friends." This was fitting. It would have been unjust not to gather his kinsmen and friends.
Moreover, by being present there, they could listen more fully to Peter.
Cornelius was a notable man and lived in a notable city. Therefore all this happens with him, and the work of the conversion of the Gentiles begins from Judea.
The vision came to him not when he was asleep, but when he was awake, during the day, about the ninth hour. So watchfully did he conduct himself.
This was fitting. It would have been unjust not to gather his kinsmen and friends.
Moreover, by being present there, they could listen more fully to Peter.
Read more (67 words)
Such is the mark of a friend, and such is the mark of a pious man: above all, to make close friends sharers in such blessings.
Naturally he calls together those whom he had always trusted, especially when speaking about such matters, about which it was still unnecessary to speak with others.
It seems to me that both his friends and his relatives were instructed by him.