How do we know that the doctrine of grace is true?

The truth of grace as a doctrine is firmly established in Scripture, wherein we learn that salvation is solely by God's grace, not by human efforts (Ephesians 2:8-9). This doctrine is further reinforced by the message of the cross, where Christ's atoning sacrifice demonstrates God’s grace toward sinners who are incapable of earning salvation. In addition, the entire narrative of Scripture highlights God's initiative in calling, redeeming, and transforming His people, affirming that grace is undeserved favor, given freely by God to those whom He has chosen. Thus, the doctrine of grace aligns with the consistent teaching of Scripture and God's character as merciful and sovereign.