Isaiah 1:9

Unless the Lord of Hosts had left us a few survivors, we would have become like Sodom, we would have resembled Gomorrah.

Note LXX had left us descendants

Note Cited in Romans 9:29

BSB · Berean Standard Bible
Except the Lord of hosts had left unto us a very small remnant, we should have been as Sodom, and we should have been like unto Gomorrah.
KJV · King James Version
Unless the Lord of Armies had left to us a very small remnant, we would have been as Sodom. We would have been like Gomorrah.
WEB · World English Bible
Except Jehovah of hosts had left unto us a very small remnant, we should have been as Sodom, we should have been like unto Gomorrah.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

left
Lamentations 3:22; Habakkuk 3:2; Romans 9:29
a very
Isaiah 6:13; Isaiah 10:22; Isaiah 17:6; Isaiah 24:13; Isaiah 37:4, 31, 32; 1 Kings 19:18; Ezekiel 6:8; Ezekiel 14:22; Joel 2:32; Zechariah 13:8, 9; Matthew 7:14; Romans 9:27; Romans 11:4–6
we should
Genesis 18:26, 32; Genesis 19:24; Deuteronomy 29:23; Lamentations 4:6; Amos 4:11; Zephaniah 2:9; Luke 17:29, 30; 2 Peter 2:6