How do we know God's purpose is effective?

The effectiveness of God's purpose is rooted in His sovereignty. Ephesians 1:4-5 reveals that He has chosen believers before the foundation of the world, demonstrating His control over salvation. Romans 9:21 further affirms that God, as the potter, has power over the clay, shaping each individual's destiny for His glory. This divine authority assures us that nothing can thwart His purpose. God's promises, along with the fulfillment of His will throughout history, provide a testimony of His unwavering effectiveness in carrying out His plans.