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

The contrast between the religion of works and the religion of grace is starkly illustrated in the offerings of Cain and Abel. Cain's offering, a product of his own labor, reflects a reliance on human effort and achievement. In contrast, Abel's offering demonstrates a faithful acknowledgment of God's holiness and the need for atonement through blood. This foundational aspect of the faith—understanding that salvation comes from Christ alone—affirms the truth of the religion of grace as set forth in Scriptures, particularly in the teachings found in Ephesians 2:8-9, which states that we are saved by grace through faith, not of works.