Why is the doctrine of predestination important for Christians?

Predestination is essential in understanding the grace of God as it reveals that He is the one who chooses individuals for salvation. This doctrine highlights God's sovereignty, as seen in passages such as Ephesians 1:4-5, where it states that believers were chosen in Christ before the foundation of the world. Knowing that salvation is not based on human merit but on God's unchanging purpose provides believers with assurance and reinforces humility, as it is a reminder that their salvation is solely a product of God's mercy and grace.