How do we know God predestines individuals?

The doctrine of predestination teaches that God, in His sovereignty, has chosen certain individuals for salvation before the foundation of the world. Romans 8:29 states, 'For whom He foreknew, He also predestined to be conformed to the image of His Son.' This act is deeply rooted in God's eternal nature, meaning His choices are not reactive but proactive, encapsulating His divine plan for redemption. This is consistent with Ephesians 1:4-5, where Paul explains that God chose us in Christ before the foundation of the world, underscoring the certainty of His sovereign will in securing our salvation.