Esias 1:9

9 And if the Lord of Sabaoth had not left us a seed, we should have been as Sodom, and we should have been made like Gomorrha.

Esias 1:9 In-Context

7 Your land is desolate, your cities burned with fire: your land, strangers devour it in your presence, and it is made desolate, overthrown by strange nations.
8 The daughter of Sion shall be deserted as a tent in a vineyard, and as a storehouse of fruits in a garden of cucumbers, as a besieged city.
9 And if the Lord of Sabaoth had not left us a seed, we should have been as Sodom, and we should have been made like Gomorrha.
10 Hear the word of the Lord, ye rulers of Sodoma; attend to the law of God, thou people of Gomorrha.
11 Of what to me is the abundance of your sacrifices? saith the Lord: I am full of whole-burnt-offerings of rams; and I delight not in the fat of lambs, and the blood of bulls and goats:

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