The reading today is very short, only four verses. But like a lot of Revelation it is somewhat confusing with its symbolism and creative poetry.
Today's reading is about the final destruction of our current reality. When the angel throws the boulder into the sea it symbolizes the conclusion of the judgments. The great and final city of the antichrist will sink into oblivion never to be heard from again.
In verses 22 & 23 we learn more about how final, or forever, the destruction of this city will be. Never again will we here the music of this city. Never again will be the sound of a craftsman plying his trade. Never again will the sound of domestic activity be heard. Never again will there be light on the streets or houses. Never again will there be the sound of weddings.
The last lines of verse 23 announce the reason for this city's final fate. Because of her great influence throughout the earth, "your merchants were the world's great men”, she had every opportunity to use her influence for good. Instead, "by your magic spell all the nations were led astray", she led mankind into false religion and the seductive belief that security can be found in the multitude of possessions. The final destruction will come because of our obsession with wealth and luxury and our wanton living.
When God destroys the final product of our civilization, a great wicked city, its commerce, religion, and culture will vanish forever because it enticed people away from true religion and holiness and into false religion and impurity. We should take warning from this reading and set more of our attention on heavenly things and less on fragile, temporary earthly things.
Wishing you much success in your walk with Christ,