Why does justification by faith alone matter? Because if we discard or downplay it, we are of necessity also discarding and downplaying grace. If our works are necessary to complete our salvation, then God’s grace isn’t sufficient to save. If our gospel is to be God-glorifying, it must be God-centered. And if it is to be God-centered, it must be grace-based. That is, it must be about what God has done to save sinners, not about what sinners have done to make themselves worthy of God.
