Albert Barnes Commentary Revelation 18:23

"and the light of a lamp shall shine no more at all in thee; and the voice of the bridegroom and of the bride shall be heard no more at all in thee: for thy merchants were the princes of the earth; for with thy sorcery were all the nations deceived." — Revelation 18:23 (ASV)

And the light of a candle shall shine no more at all in thee. Another image of desolation, as if every light were put out, and where there was total darkness.

And the voice of the bridegroom and of the bride shall be heard no more at all in thee. The merry and cheerful voice of the marriage procession in the streets (see Barnes on Matthew 25:1-7 and following), or the cheerful, glad voice of the newly-married couple in their own dwelling (see Barnes on John 3:29).

For thy merchants were the great men of the earth. Those who dealt with you were the rich, and among them were even nobles and princes; and now that they trade with you no more, there is occasion for lamentation and sorrow. The contrast is great between the time when distinguished foreigners crowded your markets, and now, when none of any kind come to traffic with you. The origin of this representation is probably the description of Tyre in Ezekiel 27:1.

For by thy sorceries were all nations deceived. This is stated as a reason for the ruin that had come upon her. It is a common representation of Papal Rome that she has deceived or deluded the nations of the earth (see Barnes on Revelation 13:14), and no representation ever made accords more with facts as they have occurred. The word sorceries here refers to the various arts—the tricks, impostures, and false pretenses, by which this has been done. See Barnes on Revelation 9:21.

On "merchants": Isaiah 23:8. On "sorceries": 2 Kings 9:22; Nahum 3:4.