Why is God's purpose of grace important for Christians?

Understanding God's purpose of grace is crucial for Christians as it provides a foundation for our faith and assurance of salvation. This grace, as described in 2 Timothy 1:9, was given to us in Christ before the world began, which emphasizes that redemption is entirely a work of God and not dependent on our efforts. It reveals that God's overarching plan is not just to save on an individual basis but to manifest His glory through the salvation of a people. Furthermore, knowing that we are saved according to His eternal purpose gives believers a deep assurance and an unshakeable confidence in God's faithfulness, guiding us through trials and uncertainties in life.