What does it mean that God has a remnant?

The term 'remnant' signifies a portion of believers whom God preserves and saves regardless of the prevailing sinful condition of humanity. As described in Romans 11:5, God has always maintained a remnant according to His election of grace. This remnant is often seen as small and seemingly insignificant, akin to the 'small remnant' mentioned in Isaiah 1:9, which highlights God's mercy in sparing a few amid widespread destruction. Understanding this concept helps Christians realize that God is sovereign in saving sinners, demonstrating His infinite grace to a select group whom He has chosen from eternity.