Esias 31:4

4 For thus said the Lord to me, As a lion would roar, or a lion's whelp over prey which he has taken, and cry over it, until the mountains are filled with his voice, and are awe-struck and tremble at the fierceness of his wrath: so the Lord of hosts shall descend to fight upon the mount Sion, upon her mountains.

Esias 31:4 In-Context

2 Therefore he has wisely brought evils upon them, and his word shall not be frustrated; and he shall rise up against the houses of wicked men, and against their vain hope,
3 an Egyptian, a man, and not God; the flesh of horses, and there is no help : but the Lord shall bring his hand upon them, and the helpers shall fail, and all shall perish together.
4 For thus said the Lord to me, As a lion would roar, or a lion's whelp over prey which he has taken, and cry over it, until the mountains are filled with his voice, and are awe-struck and tremble at the fierceness of his wrath: so the Lord of hosts shall descend to fight upon the mount Sion, upon her mountains.
5 As birds flying, so shall the Lord of hosts defend; he shall defend Jerusalem, and he shall rescue, and save and deliver.
6 Turn, ye children of Israel, who devise a deep and sinful counsel.

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