Why is faith crucial in the Christian life?

Faith is the channel through which we access the grace of God for salvation. Ephesians 2:8-9 emphasizes that we are saved by grace through faith, underscoring that it is not of ourselves but a gift from God. This faith entails trust in the finished work of Christ and is essential not only at the moment of salvation but continuously in the believer's life. It enables us to live in obedience, find strength in trials, and cultivate a relationship with God, as we rely on Him as our source of sustenance.