Why is it crucial for Christians to understand the role of grace?

Grace is central to the Gospel because it underscores the truth that we are saved 'not of works, lest any man should boast' (Ephesians 2:9). This doctrine reveals our utter dependence on God's mercy and serves as a profound comfort to believers who recognize their inability to attain righteousness through their actions. If salvation were dependent upon our performance, we would always be anxious and uncertain about our standing before God. Instead, the assurance of grace liberates us, allowing us to glory in Christ alone for our salvation.