Jerome : (Verse 8, onwards) And now listen to this, you delicate and confident one, who says in your heart: I am, and there is no one besides me; I will not sit as a widow, nor will I know the loss of children. But suddenly these two things will come upon you in one day: widowhood and loss of children. They have come upon you in their entirety because of the multitude of your sorceries and the great abundance of your enchantments. And you have trusted in your wickedness, and you have said: There is no one who sees me. Your wisdom and your knowledge have deceived you, and you have said in your heart: I am, and there is no one else besides me. Evil will come upon you, and you will not know its origin, and calamity will rush upon you, which you will not be able to atone for; suddenly, misery will come upon you, which you will not know. Babylon will come with two things together, sterility and widowhood, so that she will have no children, that is, peoples subject to her; nor a man, whom we can understand as king: while she did not hope for these things, she suddenly endured them. For she could not anticipate that the Persians, of no previous strength, would overcome her, with Cyrus reigning, and subject her to their power. He said, 'The sufferings that you endured were not only because of your pride and abundance of wealth and luxuries, but also because of the multitude of your evils and your enchantments, in which you placed your trust. And a calamity will come upon you that you did not know before, and whose origin you were ignorant of. As the Seventy translated: Destruction will come upon you, and you will not know: a pit, and you will fall into it: so that the evil of captivity that you prepared for all nations, you yourself will fall into the pit that you prepared.' We quickly skim over things that are clear in conversation. — Commentary on Isaiah Procopius of Gaza : Thinking that you would prove to be better than the Persians, you said, "I am and there is no other," and you were encouraged by the oracles of demons and astrologers. And you called on a hope that was fornication and that was far removed from God. For the association between God and all humanity by nature is very different from that between demons and humans, which provides communion through sorcery. So Paul likens idol worship to a spell when he writes of "idol worship, sorcery." But for the Babylonians and others, idolatry does not lead to pardon or deliverance but to destruction. — COMMENTARY ON Isaiah 47:1-15