How do we know God's plan for redemption is true?

The assurance of God's plan for redemption is anchored in His sovereignty and the truth of Scripture. Galatians 4:4 illustrates that God sent forth His Son at the fullness of time, fulfilling what He had decreed before the foundation of the world. This demonstrates not only God's timing but also the certainty of His promises, as seen in passages like Romans 9:22-24, where God's mercy is shown toward His elect. The unfolding of God's redemptive narrative is evidence of His faithfulness and purpose.