There are many groups of seven items in the Bible. The following is a list of seven events as recorded by the historian Josephus in The Wars of the Jews, Book Six, Chapter Five, Paragraph Three. These events are extra-scriptual, or are outside of scripture, but they are very interesting.
1) A star resembling a sword stood over the city of Jerusalem for one year.
2) During the Feast of Unleavened Bread (Nisan 8)(?? - RT), at the ninth hour of night (3:00 am - RT), a great light shone around the Holy House and Altar for one-half hour.
3) During the same festival, a heifer, which was being led to be sacrificed, gave birth to a lamb in the midst of the Temple. (What a picture! - RT)
4) (At the same feast? - RT) the Eastern Gate to the inner court of the Temple, which was of brass and required twenty men to close, was seen to be opened of its own accord about the sixth hour of night (midnight - RT).
5) A few days after that feast, on Iyar 21 before sunset, chariots and troops of soldiers were seen running about among the clouds and surrounding the cities.
6) At Pentecost, as the priests were going at night into the inner court of the Temple to perform their sacred ministrations, they felt a quaking and heard a great noise. After that they heard a sound as of a great multitude, saying, “Let us remove hence”.
7) Years before the war began (the siege of Jerusalem by the Romans – 69 A.D. - RT), at the Feast of Tabernacles (Tishri 15 - RT), Jesus, son of Ananus, began a cry;
“A voice from the east, a voice from the west, a voice from the four winds, a voice against Jerusalem and the holy house, a voice against the bridegrooms and the brides, and a voice against this whole people.”

The man was admonished and even beaten “til his bones were laid bare”. His cry changed to be delivered in “the most lamentable tone possible”; “Woe, woe to Jerusalem.”

He was dismissed as a madman. The cry of Jesus, son of Ananus, became loudest during Jewish festivals, and continued for seven years and five months without him ever becoming hoarse. During the siege of Jerusalem he was going around upon the city wall. He changed his cry to; “Woe, woe to the city again, and to the people, and to the Holy House. Woe, woe to myself.”

Just as he added the last phrase, a stone from a siege machine struck him and killed him instantly.

This is not Holy Scripture and Josephus was apparently not a Christian, but some of the events he recorded are almost prophetic. The picture of the heifer (Israel) giving birth to the lamb (Jesus) is amazing. The fourth event, in the servant lamp position (see The Lord’s Golden Lampstand), is a fascinating picture of the Lord’s Temple being opened supernaturally.

Josephus was not a prophet. His works are not scripture. But the Lord uses many different people and methods to bring glory to His Name. May His Name be praised now and forever.