Romans 9:29

And, as Isaiah hath said before, Except the Lord of Sabaoth had left us. seed, We had become as Sodom, and had been made like unto Gomorrah.

'as Isaiah'. Isaiah 2:9

'Sabaoth' -4519. sabaoth sab-ah-owth'; of Hebrew origin [6635 in feminine plural]; armies; sabaoth (i.e. tsebaoth),. military epithet of God: -sabaoth. i.e. the Lord of the heavenly hosts. The commander in chief of the armies of heaven that no human power can stand against successfully.

'a Seed' -i.e. the remnant in verse 27. This verse proves that the vast majority in the Jewish nation, was never true to God. For Isaiah says, that without this remnant of the faithful, God would of wiped us out long ago. We would have become. 'second' Sodom and Gomorrah (i.e. cities wiped off the face of the earth, absolutely nothing left of them). For want of 10 righteous people (Genesis 18:32), these cities were doomed.