Acts 10:30

For readings see critical notes. “Four days ago, until this hour, I was keeping the ninth hour of prayer,” R.V., this hour, i.e., the present hour, the hour of Peter's visit; four days ago reckoned from this present hour, lit [241], “from the fourth day,” “quarto abhinc die”. The four days according to the Jewish mode of reckoning would include the day of the vision and departure of the messengers, the day they reached Joppa, the day of their return with Peter, and the day of their reaching Cæsarea. Cornelius wishes to signify two things: (1) that the vision occurred, even to the hour, four days before Peter's arrival; (2) that this period of time when it occurred was the ninth hour. ἐν ἐσθῆτι λαμπρᾷ, see on Acts 1:11, “cur illum contemneremus et fugeremus cui angeli ministrant?” Wetstein.

[241] literal, literally.