Peter went up ... - The small room in the second story, or on the roof of the house, was the usual place for retirement and prayer. See the notes on Matthew 6:6; Matthew 9:2. Even when there was no room constructed on the roof, the roof was a common resort for retirement and prayer. Around the edge a battlement or parapet was commonly made, within which a person could be quite retired from public view. "At Jaffa, the ancient Joppa," says Prof. Hackett (lllustrations of Scripture, p. 81), "where Peter was residing at the time of his vision on the house-top, I observed houses furnished with a wall around the roof, within which a person could sit or kneel without any exposure to the view of others, whether on the adjacent houses or in the streets. At Jerusalem I entered the house of a Jew early one morning, and found a member of the family, sitting secluded and alone on one of the lower roofs, engaged in reading the Scriptures and offering his prayers."

Dr. Thomson (Land and the Book, vol. i. p. 52) says of these roofs, "When surrounded with battlements, and shaded by vines trained over them, they afford a very agreeable retreat, even at the sixth hour of the day - the time when Peter was favored with that singular vision, by which the kingdom of heaven was thrown open to the Gentile world."

About the sixth hour - About twelve o'clock (at noon). The Jews had two stated seasons of prayer, morning and evening. But it is evident that the more pious of the Jews frequently added a third season of devotion, probably at noon. Thus, David says Psalm 55:17, "Evening and morning, and at noon, will I pray, and cry aloud." Thus, Daniel "kneeled upon his knees three times a day and prayed," Daniel 6:10, Daniel 6:13. It was also customary in the early Christian church to offer prayer at the third, sixth, and ninth hours (Clem. Alex. as quoted by Doddridge). Christians will, however, have not merely stated seasons for prayer, but they will seize upon moments of leisure, and when their feelings strongly incline them to it, to pray.

On the morrow, as they went on their journey - From Joppa to Caesarea was about twelve or fifteen leagues; the messengers could not have left the house of Cornelius till about two hours before sunset; therefore, they must have traveled a part of the night, in order to arrive at Joppa the next day, towards noon. - Calmet. Cornelius sent two of his household servants, by way of respect to Peter; probably the soldier was intended for their defense, as the roads in Judea were by no means safe.

Peter went up upon the house-top to pray - It has often been remarked that the houses in Judea were builded with flat roofs, on which people walked, conversed, meditated, prayed, etc. The house-top was the place of retirement; and thither Peter went for the purpose of praying to God. In Bengal, some of the rich Hindoos have a room on the top of the house, in which they perform worship daily.

On the morrow, as they went on their journey,.... From Caesarea to Joppa; Joppa is said to be six and thirty miles distant from Caesarea; so far Caesarea was from Lydda, but it seems to be further from Joppa; for according to Josephus (b), from Joppa to Antipatris were a hundred and fifty furlongs, which are almost nineteen miles, and from thence to Caesarea were twenty six miles; unless there was a nearer way by the sea shore, as there was a way by that from Caesarea to Joppa, of which the above author makes mention (c); wherefore they must either have set out the evening before, or early that morning, to get to Joppa by the sixth hour, or twelve o'clock at noon; as it seems they did, by what follows:

and drew nigh unto the city; that is, of Joppa, were but a little way distant from it:

Peter went up upon the housetop to pray; the roofs of houses in Judea were flat, and persons might walk upon them, and hither they often retired for devotion and recreation; See Gill on Matthew 10:27, Matthew 24:17, it was on the former count, namely for prayer, that Peter went up thither, and that he might, be private and alone, and undisturbed in the discharge of that duty. This being at a tanner's house, though not in his shop, brings to mind a canon of the Jews (d),

"a man may not enter into a bath, nor into a tanner's shop, near the Minchah,''

or time of prayer. Now this was about the sixth hour or twelve o'clock at noon, when Peter went up to pray; at which time the messengers from Cornelius were near the city of Joppa; this was another time of prayer used by the Jews, and is what they call the great Minchah, which began at the sixth hour and an half, and so was as is here said, about the sixth hour See Gill on Acts 3:1.

(b) Antiqu. l. 13. c. 13. (c) De Bello Jud. l. 5. c. 14. (d) Misn. Sabbat, c. 1. sect. 2.

They (ἐκείνων)

Those messengers, the servants and the soldier. The pronoun has a more specific reference than the English they.

On the morrow, as they went on their journey, and drew nigh unto the city, Peter went up upon the housetop to pray about the sixth hour:

10:9 On the morrow, as they... drew nigh to the city. Starting in the evening, after three o'clock, they could be near Joppa, thirty miles distant, the next day, at the sixth hour, or about twelve o'clock.

Went up upon the house top to pray. To the flat roof of the house, surrounded by the usual balustrade about four feet high, a place of retirement, and often the sleeping place of the family in the warm season. Moses required balustrades to the roofs (De 22:8). See also 1Sa 9:25.

9-16. upon the housetop-the flat roof, the chosen place in the East for cool retirement.

the sixth hour-noon.

10:9-18 The prejudices of Peter against the Gentiles, would have prevented his going to Cornelius, unless the Lord had prepared him for this service. To tell a Jew that God had directed those animals to be reckoned clean which were hitherto deemed unclean, was in effect saying, that the law of Moses was done away. Peter was soon made to know the meaning of it. God knows what services are before us, and how to prepare us; and we know the meaning of what he has taught us, when we find what occasion we have to make use of it.