4 all because of the wanton lust of a prostitute, alluring, the mistress of sorceries, who enslaved nations by her prostitution and peoples by her witchcraft.
3 For all the nations have drunk the maddening wine of her adulteries. The kings of the earth committed adultery with her, and the merchants of the earth grew rich from her excessive luxuries."
(Read Revelation 18:1-8)
The downfal and destruction of the mystical Babylon are determined in the counsels of God. Another angel comes from heaven. This seems to be Christ himself, coming to destroy his enemies, and to shed abroad the light of his gospel through all nations. The wickedness of this Babylon was very great; she had forsaken the true God, and set up idols, and had drawn all sorts of men into spiritual adultery, and by her wealth and luxury kept them in her interest. The spiritual merchandise, by which multitudes have wickedly lived in wealth, by the sins and follies of mankind, seems principally intended. Fair warning is given to all that expect mercy from God, that they should not only come out of this Babylon, but assist in her destruction. God may have a people even in Babylon. But God's people shall be called out of Babylon, and called effectually, while those that partake with wicked men in their sins, must receive of their plagues.
Matthew Henry's Commentary on Nahum 3:4
Commentary on Nahum 3:1-7
(Read Nahum 3:1-7)
When proud sinners are brought down, others should learn not to lift themselves up. The fall of this great city should be a lesson to private persons, who increase wealth by fraud and oppression. They are preparing enemies for themselves; and if the Lord sees good to punish them in this world, they will have none to pity them. Every man who seeks his own prosperity, safety, and peace, should not only act in an upright, honourable manner, but with kindness to all.