How do we know grace is sufficient for Christians?

Grace is the means through which God's power operates in our lives, providing not just for our salvation but also for our ongoing preservation amid life's challenges. Hebrews 12 urges believers to focus on God's grace, as it is through this grace that we find strength. The sufficiency of grace is evident in the community of faith, where we support one another and remind each other of Christ's enduring promises. Our struggles serve to deepen our reliance on this grace, showing that without it, we cannot have hope or endurance.