How do we know the doctrine of God's sovereignty in grace is true?

The doctrine of God's sovereignty in grace is supported by numerous biblical texts that highlight God's ultimate authority in choosing who receives grace. Romans 9 illustrates this by stating that God's purpose in election stands firmly according to His call and not our works. Similarly, Ephesians 1 reveals that God chooses us in Christ before the foundation of the world, underscoring His preordained plan in dispensing grace. These passages demonstrate that God's will is the decisive factor, revealing His absolute sovereignty over salvation.