Seven
Seven, as in Revelation 15:1, signifies everything in an universal sense. The number 'seven' was considered holy, as is well known, because of the six days of creation, and the seventh, which is the celestial self, where peace, rest, and the Sabbath is. The number seven occurs so frequently in the rites of the Jewish church and is held holy everywhere.
So times were divided into seven, longer and shorter intervals, and were called weeks, like the great intervals of times till the coming of the Messiah, in Daniel 9:24-25. The time of seven years is called 'a week' by Laban and Jacob, as in Genesis 29:27-28. So wherever the number seven occurs, it is considered holy and sacred, as in Psalm 119:164, and in Isaiah 30:26.
As the periods of a person's regeneration are distinguished into six, prior to the seventh, or the celestial self, so the times of vastation are also distinguished, until nothing celestial is left. This was represented by the many captivities of the Jews, and by the last Babylonian captivity, which lasted seven decades, or seventy years. This was also represented by Nebuchadnezzar, in Daniel 4:16, 22, 29. It also refers to the vastation of the end times, in Revelation 15:1, 7-8. They should 'tread the holy city under foot, forty and two months, or six times seven,' as in Revelation 11:2 and Revelation 5:1. So the severity and increments of punishment were expressed by the number seven, as in Leviticus 26:18, 21, 24, 28 and Psalm 79:12.
(Odkazy: Apocalypse Explained 5, 7-8, 15; Arcana Coelestia 395; Daniel 9, 9:24, 9:25; Psalms 119)
Revelation 15
1
I saw another great and marvelous sign in the sky: seven angels having the seven last plagues, for in them God's wrath is finished.
2
I saw something like a sea of glass mixed with fire, and those who overcame the beast, his image, and the number of his name, standing on the sea of glass, having harps of God.
3
They sang the song of Moses, the servant of God, and the song of the Lamb, saying, "Great and marvelous are your works, Lord God, the Almighty! Righteous and true are your ways, you King of the nations.
4
Who wouldn't fear you, Lord, and glorify your name? For you only are holy. For all the nations will come and worship before you. For your righteous acts have been revealed."
5
After these things I looked, and the temple of the tabernacle of the testimony in heaven was opened.
6
The seven angels who had the seven plagues came out, clothed with pure, bright linen, and wearing golden sashes around their breasts.
7
One of the four living creatures gave to the seven angels seven golden bowls full of the wrath of God, who lives forever and ever.
8
The temple was filled with smoke from the glory of God, and from his power. No one was able to enter into the temple, until the seven plagues of the seven angels would be finished.
