How do we know that election is true according to the Bible?

Biblical evidence of election is clearly articulated within both the Old and New Testaments. Paul emphasizes that God's choice does not stem from human actions or merit but is rooted in His sovereign will and purpose. For instance, Romans 9 illustrates the example of Jacob and Esau, where God's choice of Jacob was made before either child could do good or evil, highlighting that election hinges on God's mercy and not human deeds. This same theme is echoed in Ephesians 1:4-5, where believers are chosen in Christ before the foundation of the world. The doctrine of election reassures believers that their salvation is secure, grounded in God's unchanging and unconditional love.