Jezekiel 30:8

8 and they shall know that I am the Lord, when I shall send fire upon Egypt, and all that help her shall be broken.

Jezekiel 30:8 In-Context

6 And the supports of Egypt shall fall; and the pride of her strength shall come down from Magdol to Syene: they shall fall by the sword in it, saith the Lord.
7 And it shall be made desolate in the midst of desolate countries, and their cities shall be in the midst of desolate cities:
8 and they shall know that I am the Lord, when I shall send fire upon Egypt, and all that help her shall be broken.
9 In that day shall messengers go forth hasting to destroy Ethiopia utterly, and there shall be tumult among them in the day of Egypt: for, behold it comes.
10 Thus saith the Lord God; I will also destroy the multitude of the Egyptians by the hand of Nabuchodonosor king of Babylon,

The Brenton translation of the Septuagint is in the public domain.