Ezechiela 26:2 Midrasz: Mekhilta DeRabbi Yishmael & Midrash Aggadah

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."

"One people shall be mightier than the other." Rome was destroyed and Jerusalem remained, Jerusalem was destroyed and Rome remained. And similarly it is stated,"Now that it is laid in ruins." (Ezekiel 26:2) If one is in ruins, the other will be destroyed too.