I think I know why you are confused. Barnes I think is trying to say that the ten virgins represent the church in the sense that he sees all Christians as being represented in these friends of the bridegrooom.
So it seems Barnes is stating that the ten virgins "doubtless represent the church" and then he turns around and states "
These were probably female friends and relatives of the bridegroom, who went out to welcome him and his new companion to their home. These are the virgins mentioned in this parable "
So which is it? I think he meant by stating that they ten virgins represent the church not that they represent the Bride in the Jewish ceremony but that he sees that the church (each christian) is being compared to these friends of the Bridegroom in this parable and the lesson of being ready to go out when the Bridegroom comes.
Here is his commentary in it's entirety.
The meaning is, "When the Son of man returns to judgment, it will be as it was in the case of ten virgins in a marriage ceremony." The coming of Christ to receive his people to himself is often represented under the similitude of a marriage, the church being represented as his spouse or bride. The marriage relation is the most tender, firm, and endearing of any known on earth, and on this account it suitably represents the union of believers to Christ. See
Matthew 9:15;
John 3:29;
Revelation 19:7;
Revelation 21:9;
Ephesians 5:25-32.
Ten virgins -
These virgins, doubtless, represent the church - a name given to it because it is pure and holy. See
2 Corinthians 11:2;
Lamentations 1:15;
Lamentations 2:13.
Which took their lamps, and went forth to meet the bridegroom - The "lamps" used on such occasions were rather "torches" or "flambeaux." They were made by winding rags around pieces of iron or earthenware, sometimes hollowed so as to contain oil, and fastened to handles of wood. These torches were dipped in oil, and gave a large light. Marriage "ceremonies" in the East were conducted with great pomp and solemnity. The ceremony of marriage was performed commonly in the open air, on the banks of a stream. Both the bridegroom and bride
were attended by friends. They were escorted in a palanquin. carried by four or more persons. After the ceremony of marriage succeeded a feast of seven days if the bride was a virgin, or three days if she was a widow. This feast was celebrated in her father's house. At the end of that time the bridegroom conducted the bride with great pomp and splendor to his own home.
This was done in the evening, or at night,
Jeremiah 7:34;
Jeremiah 25:10;
Jeremiah 33:11. Many friends and relations attended them; and besides those who went with them from the house of the bride, there was another company that came out from the house of the bridegroom to meet them and welcome them. These were probably female friends and relatives of the bridegroom, who went out to welcome him and his new companion to their home
. These are the virgins mentioned in this parable. Not knowing precisely the time when the procession would come, they probably went out early, and waited until they should see indications of its approach. In the celebration of marriage in the East at the present day, many of the special customs of ancient times are observed. "At a Hindu marriage," says a modern missionary, "the procession of which I saw some years ago, the bridegroom came from a distance, and the bride lived at Serampore, to which place the bridegroom was to come by water. After waiting two or three hours, at length, near midnight, it was announced, in the very words of Scripture, 'Behold the bridegroom cometh; go ye out to meet him.' All the persons employed now lighted their lamps, and ran with them in their hands to fill up their stations in the procession. Some of them had lost their lights and were unprepared, but it was then too late to seek them, and the cavalcade moved forward to the house of the bride, at which place the company entered a large and splendidly illuminated area before the house, covered with an awning, where a great multitude of friends, dressed in their best apparel, were seated upon mats. The bridegroom was carried in the arms of a friend, and placed in a superb seat in the midst of the company, where he sat a short time, and then went into the house, the door of which was immediately shut and guarded by sepoys. I and others expostulated with the doorkeepers, but in vain. Never was I so struck with our Lord's beautiful parable as at this moment - 'And the door was shut.'"