How do we know that God's will is unchangeable?

The unchangeable nature of God's will is a cornerstone of Reformed theology. Scripture asserts that what God decrees will inevitably come to pass. In Acts 27, Paul reassures others that despite the tumultuous journey, God's purpose for him remains unchanged: he must stand before Caesar. This is echoed in Ephesians 1:11, which states that He 'works all things after the counsel of his own will.' Hence, believers can take comfort that even their missteps cannot derail God's ultimate plan for their lives, reinforcing themes of predestination and divine governance found throughout the New Testament.