How do we know the doctrine of unconditional election is true?

Unconditional election, a key aspect of Reformed theology, teaches that God chose certain individuals for salvation based solely on His will and purpose, not on any foreseen merit or action on their part. Ephesians 1:4-5 explicitly states that He chose us in Him before the foundation of the world, which affirms that God's electing love is rooted in His grace alone. This doctrine underscores the biblical truth that our salvation is entirely dependent on God’s initiative and decision, providing reassurance that nothing can thwart His redemptive plan. It reminds us that God’s election brings glory to His grace, leaving no room for human boasting.