Midras Yehezkiel 26:3: Mekhilta DeRabbi Yishmael & Midrash Tanchuma

And thus with. And thus with. And thus with Tyre and Malchah — With what they vaunted themselves, punishment was exacted of them. As it is written (Ezekiel 17:3) "Tyre, you have said: I am the quintessence of beauty, etc." And of Malchah it is written (Ibid. 28:2) "You have set your heart like the heart of G–d, etc."

Similarly, retribution was exacted from Tyre by the very thing in which it prided itself. Thou, O Tyre, hast said: I am of perfect beauty. Thy borders are in the heart of the seas, thy builders have perfected thy beauty (Ezek. 27:3–4), and that is followed by: Behold, I am against thee, O Tyre, and will cause many nations to come up against thee, as the sea causeth its waves to come up (ibid. 26:3). And the prince of Tyre was likewise punished through the thing for which he had extolled himself. Son of man, say unto the prince of Tyre: “Thus saith the Lord: Because thy heart is lifted up, and thou hast said: I am a god, I sit in the seat of God, in the heart of the sea; yet thou art a man, and not God, though didst set thy heart as the heart of God, etc. (Ezek. 28:2). Hence, thou shalt die the deaths of the uncircumcised by the hand of strangers (ibid., v. 10). With whatever nations exalt themselves, retribution is exacted upon them. Hence it is said: For He is highly exalted.

And we are hereby apprised that the captives rejoiced in all the decrees inflicted by Pharaoh upon Israel, (for which they were punished) in keeping with (Mishlei 17:5) "He who rejoices in (another's) misfortune will not be absolved," and (Psalms 24:17) "Do not rejoice in the downfall of your foe," and (Ezekiel 26:2-3) "Son of man, because Tyre said about (the besieged Jerusalem) 'Heach!' (an expression of joy) — thus said the L–rd G–d: 'Behold, Tyre, I am (coming) against you, and I will raise up many nations against you, as the sea raises its waves!'" And not only captives alone (were thus smitten), but even men-servants and maid-servants, viz. (Exodus 17:5) "… until the first-born of the maid-servant."