In a culture that prioritizes unbelief and hopelessness, the final line of the Apostles' Creed fights against this. "Amen" is not a mere throwaway line or a good closer, it is an affirmation of God's character and anticipation that God will do what He says. From 2 Corinthians 1:20-22, we see that Jesus is the affirmation and anticipation of all God's promises being fulfilled.
