What does the remnant mean in Isaiah?

The concept of the remnant in Isaiah encompasses the idea that, despite the overwhelming sin and rebellion of the wider population, God preserves a faithful group. Isaiah 1:9 states, 'Except the Lord of hosts had left us a remnant, we should have been as Sodom and Gomorrah.' This remnant represents those elected by grace who truly acknowledge God's sovereignty and adhere to His truth. Historically and theologically, this echoes the doctrine of election where God, in His mercy, preserves a seed of righteousness that will ultimately fulfill His purposes. For Christians, being part of this remnant emphasizes the grace of God in salvation and the call to live according to divine revelation, standing firm in faith against the tide of societal corruption.