9 The LORD of hosts hath purposed it, to stain the pride of all glory, and to bring into contempt all the honourable of the earth.
[AD 420] Jerome on Isaiah 23:8-9
(Vers. 8, 9.) Who has conceived these things against Tyre? Is it not the smaller one, or does it not prevail? Its merchants are the princes of Canaan, the famous ones of the land. The Lord of hosts has conceived to dissolve every insult of the proud, and to dishonor everything that is famous on the earth. The word of Canaan is added from the edition of Theodotion, for which Aquila translated merchants. Therefore, the Holy Spirit asks, or rather confirms by asking, that the Lord has conceived these things against the princes of Tyre, whose entire effort is to seek wealth through commerce. And as we read in the Gospel (Matt. XIII), the merchants of pearls, who having sold everything, desire to buy one pearl, and are certainly to be called illustrious merchants not of the earth, but of heaven: so, on the other hand, the merchants of Tyre, that is, of tribulation and distress, are to be called illustrious of the earth, because whatever they do, concerns the earth: and the princes of Canaan, which is interpreted as fluctuating and unsettled. For they do not establish their feet upon a rock, nor can it be said of them: A rock is a refuge for hedgehogs (Ps. XXXIX; CIII, 18), or hares; but rather they endure what the just man almost suffered: But my feet were almost moved; my steps had well nigh slipped (Ps. LXXII, 2). Therefore, the Lord of hosts has conceived this plan, in order to dissolve the wicked bonds of business, or rather to dissipate the compacted injustice through which all those who are subject to Tyre are insolent. And what he has done is not to dishonor everything that is glorious on earth; the Lord is not the author of dishonor, but rather what is ignominious is shown to be ignominious in and of itself. Indeed, we read this also about the priests in Leviticus: 'He has been contaminated by contamination' (Lev. XXI). No doubt, the priest is contaminated not by his own doing, but in order to show that he has been contaminated, who previously seemed to be clean to many.

[AD 420] Jerome on Isaiah 23:9
(Verse 9.) The Lord of hosts has thought of this, to take away the pride of all glory: and to bring into contempt all the glorious ones of the earth. For as he had said above: Who hath thought the former Tyre, crowned by the ancients, that such a thing should be done? Now he himself speaks: Not of the fates, as foolish men imagine, are these threads spun: not by the turning of fortune's wheel, but by the judgment of God and his own will, is all this accomplished, who resists the proud, and gives grace to the humble (James 4): and it warns the arrogant of their condition, that they may learn his power through misery, whose mercy they refused to feel through benefits.