What is the significance of the term 'remnant' in Isaiah?

'Remnant' in Isaiah refers to the small group of believers who remain faithful to God despite the larger population's disobedience. Isaiah 1:9 states, 'Except the Lord of hosts had left unto us a very small remnant, we should have been as Sodom.' This concept underscores God's sovereignty in preserving His people and emphasizes the importance of faithfulness amid general apostasy. The remnant's significance carries through to the New Testament, where believers are called to be the faithful ones in Christ, emphasizing election and grace throughout Scriptures.