He saw in a vision evidently about the ninth hour of the day an angel of God coming in to him, and saying unto him, Cornelius.
All Commentaries on Acts 10:3 Go To Acts 10
John Chrysostom
AD 407
Why does he see the angel? This also was in order to the full assurance of Peter, or rather, not of him, but of the others, the weaker ones. At the ninth hour, when he was released from his cares and was at quiet, when he was engaged in prayers and compunction. And when he looked on him, he was afraid.