Four days ago I was fasting until this hour; Cornelius does not intend to declare by this how long he had fasted; but he tells him when he, being fasting, saw the vision, which was four days before, at the same time of the day.
The ninth hour, which was a time of prayer, it being the time of offering the evening sacrifice: see Act_3:1.
A man, in appearance, but an angel indeed, as in Act_10:3.
In bright clothing; why angels appeared in bright or white raiment, see Act_1:10.