What does the Bible say about election and holiness?

According to Ephesians 1:4, God has chosen believers in Christ before the foundation of the world so that they should be holy and blameless before Him. This election is not based on any foreseen holiness in the individuals but is an unconditional act of God that ensures sanctification and holiness as essential for eternal glory. This is supported by 2 Thessalonians 2:13, which also emphasizes that believers are chosen to salvation through the sanctification of the Spirit and belief of the truth.