What does the Bible say about the power of belief?

In Ephesians, Paul emphasizes the exceeding greatness of God's power towards those who believe, stating that it is through this divine power that we are enabled to trust in Christ. This belief is not merely a human effort but a gift of grace that allows us to understand and accept our need for a Savior. Paul describes this power as essential for knowing Christ and living in accordance with His will, highlighting that true faith involves an ongoing reliance on God's strength to believe and act according to His Word.